diff --git a/src/test/app/SetAuth_test.cpp b/src/test/app/SetAuth_test.cpp
index 3dd8ab590a4..adb909314d3 100644
--- a/src/test/app/SetAuth_test.cpp
+++ b/src/test/app/SetAuth_test.cpp
@@ -38,8 +38,8 @@ struct SetAuth_test : public beast::unit_test::suite
         using namespace jtx;
         Json::Value jv;
         jv[jss::Account] = account.human();
-        jv[jss::LimitAmount] = STAmount(Issue{to_currency(currency), dest})
-                                   .getJson(JsonOptions::none);
+        jv[jss::LimitAmount] =
+            STAmount({to_currency(currency), dest}).getJson(JsonOptions::none);
         jv[jss::TransactionType] = jss::TrustSet;
         jv[jss::Flags] = tfSetfAuth;
         return jv;
diff --git a/src/test/jtx/amount.h b/src/test/jtx/amount.h
index 0b408f80164..70a0bf51f34 100644
--- a/src/test/jtx/amount.h
+++ b/src/test/jtx/amount.h
@@ -161,64 +161,8 @@ operator!=(PrettyAmount const& lhs, PrettyAmount const& rhs)
     return !operator==(lhs, rhs);
 }
 
-template <typename T>
-static std::string
-to_places(const T d, std::uint8_t places)
-{
-    assert(places <= std::numeric_limits<T>::digits10);
-
-    std::ostringstream oss;
-    oss << std::setprecision(places) << std::fixed << d;
-
-    std::string out = oss.str();
-    out.erase(out.find_last_not_of('0') + 1, std::string::npos);
-    if (out.back() == '.')
-        out.pop_back();
-
-    return out;
-}
-
-inline std::ostream&
-operator<<(std::ostream& os, PrettyAmount const& amount)
-{
-    if (amount.value().isIssue())
-    {
-        auto const& stAmount = get<STAmount>(amount);
-        if (stAmount.native())
-        {
-            // measure in hundredths
-            auto const c = dropsPerXRP.drops() / 100;
-            auto const n = stAmount.mantissa();
-            if (n < c)
-            {
-                if (stAmount.negative())
-                    os << "-" << n << " drops";
-                else
-                    os << n << " drops";
-                return os;
-            }
-            auto const d = double(n) / dropsPerXRP.drops();
-            if (stAmount.negative())
-                os << "-";
-
-            os << to_places(d, 6) << " XRP";
-        }
-        else
-        {
-            os << stAmount.getText() << "/"
-               << to_string(stAmount.issue().currency) << "(" << amount.name()
-               << ")";
-        }
-    }
-    else
-    {
-        auto const& mptAmount = get<STMPTAmount>(amount);
-        os << mptAmount.getText() << "/"
-           << to_string(mptAmount.issue().getMptID()) << "(" << amount.name()
-           << ")";
-    }
-    return os;
-}
+std::ostream&
+operator<<(std::ostream& os, PrettyAmount const& amount);
 
 //------------------------------------------------------------------------------
 
@@ -422,11 +366,11 @@ operator<<(std::ostream& os, IOU const& iou);
 
 //------------------------------------------------------------------------------
 
-/** Converts to MPT Issue or STAmount.
+/** Converts to MPT Issue or STMPTAmount.
 
     Examples:
         MPT         Converts to the underlying Issue
-        MPT(10)     Returns STAmount of 10 of
+        MPT(10)     Returns STMPTAmount of 10 of
                         the underlying MPT
 */
 class MPT
@@ -526,11 +470,6 @@ struct AnyAmount
     }
 };
 
-inline PrettyAmount::operator AnyAmount() const
-{
-    return AnyAmount{amount_};
-}
-
 inline AnyAmount
 any_t::operator()(STAmount const& sta) const
 {
diff --git a/src/test/jtx/impl/amount.cpp b/src/test/jtx/impl/amount.cpp
index 1813233a0aa..752d68ef1fd 100644
--- a/src/test/jtx/impl/amount.cpp
+++ b/src/test/jtx/impl/amount.cpp
@@ -47,6 +47,70 @@ operator<<(std::ostream&& os,
 }
 #endif
 
+PrettyAmount::operator AnyAmount() const
+{
+    return {amount_};
+}
+
+template <typename T>
+static std::string
+to_places(const T d, std::uint8_t places)
+{
+    assert(places <= std::numeric_limits<T>::digits10);
+
+    std::ostringstream oss;
+    oss << std::setprecision(places) << std::fixed << d;
+
+    std::string out = oss.str();
+    out.erase(out.find_last_not_of('0') + 1, std::string::npos);
+    if (out.back() == '.')
+        out.pop_back();
+
+    return out;
+}
+
+std::ostream&
+operator<<(std::ostream& os, PrettyAmount const& amount)
+{
+    if (amount.value().isIssue())
+    {
+        auto const& stAmount = get<STAmount>(amount);
+        if (stAmount.native())
+        {
+            // measure in hundredths
+            auto const c = dropsPerXRP.drops() / 100;
+            auto const n = stAmount.mantissa();
+            if (n < c)
+            {
+                if (stAmount.negative())
+                    os << "-" << n << " drops";
+                else
+                    os << n << " drops";
+                return os;
+            }
+            auto const d = double(n) / dropsPerXRP.drops();
+            if (stAmount.negative())
+                os << "-";
+
+            os << to_places(d, 6) << " XRP";
+        }
+        else
+        {
+            os << stAmount.getText() << "/"
+               << to_string(stAmount.issue().currency) << "(" << amount.name()
+               << ")";
+        }
+    }
+    else
+    {
+        auto const& mptAmount = get<STMPTAmount>(amount);
+        os << mptAmount.getText() << "/"
+           << to_string(mptAmount.issue().getMptID()) << "(" << amount.name()
+           << ")";
+    }
+    return os;
+}
+
 //------------------------------------------------------------------------------
 
 XRP_t const XRP{};
diff --git a/src/test/jtx/impl/offer.cpp b/src/test/jtx/impl/offer.cpp
index ef702c88b25..d6e2d89bc21 100644
--- a/src/test/jtx/impl/offer.cpp
+++ b/src/test/jtx/impl/offer.cpp
@@ -24,12 +24,11 @@ namespace ripple {
 namespace test {
 namespace jtx {
 
-template <ValidAmountType T>
-static Json::Value
+Json::Value
 offer(
     Account const& account,
-    T const& takerPays,
-    STAmount const& takerGets,
+    STEitherAmount const& takerPays,
+    STEitherAmount const& takerGets,
     std::uint32_t flags)
 {
     Json::Value jv;
@@ -42,26 +41,6 @@ offer(
     return jv;
 }
 
-Json::Value
-offer(
-    Account const& account,
-    STAmount const& takerPays,
-    STAmount const& takerGets,
-    std::uint32_t flags)
-{
-    return offer<STAmount>(account, takerPays, takerGets, flags);
-}
-
-Json::Value
-offer(
-    Account const& account,
-    STMPTAmount const& takerPays,
-    STAmount const& takerGets,
-    std::uint32_t flags)
-{
-    return offer<STMPTAmount>(account, takerPays, takerGets, flags);
-}
-
 Json::Value
 offer_cancel(Account const& account, std::uint32_t offerSeq)
 {
diff --git a/src/test/jtx/impl/trust.cpp b/src/test/jtx/impl/trust.cpp
index f72ede5abe3..94f9d49ed46 100644
--- a/src/test/jtx/impl/trust.cpp
+++ b/src/test/jtx/impl/trust.cpp
@@ -63,11 +63,10 @@ trust(
     return jv;
 }
 
-template <ValidAmountType T>
 Json::Value
-claw_amount(
+claw(
     Account const& account,
-    T const& amount,
+    STEitherAmount const& amount,
     std::optional<Account> const& mptHolder)
 {
     Json::Value jv;
@@ -81,24 +80,6 @@ claw_amount(
     return jv;
 }
 
-Json::Value
-claw(
-    Account const& account,
-    STAmount const& amount,
-    std::optional<Account> const& mptHolder)
-{
-    return claw_amount(account, amount, mptHolder);
-}
-
-Json::Value
-claw(
-    Account const& account,
-    STMPTAmount const& amount,
-    std::optional<Account> const& mptHolder)
-{
-    return claw_amount(account, amount, mptHolder);
-}
-
 }  // namespace jtx
 }  // namespace test
 }  // namespace ripple
diff --git a/src/test/jtx/offer.h b/src/test/jtx/offer.h
index 32db98a937a..2d66b24436e 100644
--- a/src/test/jtx/offer.h
+++ b/src/test/jtx/offer.h
@@ -32,15 +32,8 @@ namespace jtx {
 Json::Value
 offer(
     Account const& account,
-    STAmount const& takerPays,
-    STAmount const& takerGets,
-    std::uint32_t flags = 0);
-
-Json::Value
-offer(
-    Account const& account,
-    STMPTAmount const& takerPays,
-    STAmount const& takerGets,
+    STEitherAmount const& takerPays,
+    STEitherAmount const& takerGets,
     std::uint32_t flags = 0);
 
 /** Cancel an offer. */
diff --git a/src/test/jtx/trust.h b/src/test/jtx/trust.h
index e2f4bd475a8..03e045591ce 100644
--- a/src/test/jtx/trust.h
+++ b/src/test/jtx/trust.h
@@ -43,12 +43,7 @@ trust(
 Json::Value
 claw(
     Account const& account,
-    STAmount const& amount,
-    std::optional<Account> const& mptHolder = std::nullopt);
-Json::Value
-claw(
-    Account const& account,
-    STMPTAmount const& amount,
+    STEitherAmount const& amount,
     std::optional<Account> const& mptHolder = std::nullopt);
 
 }  // namespace jtx
diff --git a/src/test/ledger/BookDirs_test.cpp b/src/test/ledger/BookDirs_test.cpp
index c023407c70a..b50f4381f48 100644
--- a/src/test/ledger/BookDirs_test.cpp
+++ b/src/test/ledger/BookDirs_test.cpp
@@ -82,10 +82,8 @@ struct BookDirs_test : public beast::unit_test::suite
             auto i = 1, j = 3, k = 0;
             for (auto const& e : d)
             {
-                BEAST_EXPECT(
-                    get<STAmount>(e->getFieldAmount(sfTakerPays)) == AUD(i));
-                BEAST_EXPECT(
-                    get<STAmount>(e->getFieldAmount(sfTakerGets)) == XRP(j));
+                BEAST_EXPECT(e->getFieldAmount(sfTakerPays) == AUD(i));
+                BEAST_EXPECT(e->getFieldAmount(sfTakerGets) == XRP(j));
                 if (++k % 80 == 0)
                 {
                     ++i;
diff --git a/src/test/ledger/Directory_test.cpp b/src/test/ledger/Directory_test.cpp
index 7991e257f37..1a14feff061 100644
--- a/src/test/ledger/Directory_test.cpp
+++ b/src/test/ledger/Directory_test.cpp
@@ -136,12 +136,8 @@ struct Directory_test : public beast::unit_test::suite
         for (auto const& offer : book)
         {
             count++;
-            BEAST_EXPECT(
-                get<STAmount>(offer->getFieldAmount(sfTakerPays)) ==
-                USD(count));
-            BEAST_EXPECT(
-                get<STAmount>(offer->getFieldAmount(sfTakerGets)) ==
-                XRP(count));
+            BEAST_EXPECT(offer->getFieldAmount(sfTakerPays) == USD(count));
+            BEAST_EXPECT(offer->getFieldAmount(sfTakerGets) == XRP(count));
         }
     }
 
diff --git a/src/test/protocol/Quality_test.cpp b/src/test/protocol/Quality_test.cpp
index 64cf0c71b3a..741a341d980 100644
--- a/src/test/protocol/Quality_test.cpp
+++ b/src/test/protocol/Quality_test.cpp
@@ -29,7 +29,7 @@ class Quality_test : public beast::unit_test::suite
     // Create a raw, non-integral amount from mantissa and exponent
     STAmount static raw(std::uint64_t mantissa, int exponent)
     {
-        return STAmount(Issue{Currency(3), AccountID(3)}, mantissa, exponent);
+        return STAmount({Currency(3), AccountID(3)}, mantissa, exponent);
     }
 
     template <class Integer>
diff --git a/src/test/protocol/STAmount_test.cpp b/src/test/protocol/STAmount_test.cpp
index 39c93f4aa1c..e48d0500ba6 100644
--- a/src/test/protocol/STAmount_test.cpp
+++ b/src/test/protocol/STAmount_test.cpp
@@ -625,8 +625,7 @@ class STAmount_test : public beast::unit_test::suite
 
         try
         {
-            auto const t =
-                static_cast<STAmount>(amountFromString(usd, "136500"));
+            auto const t = amountFromString(usd, "136500");
             fail(to_string(t.xrp()));
         }
         catch (std::logic_error const&)
diff --git a/src/test/protocol/STObject_test.cpp b/src/test/protocol/STObject_test.cpp
index 5a1ed3397dc..b55c1959363 100644
--- a/src/test/protocol/STObject_test.cpp
+++ b/src/test/protocol/STObject_test.cpp
@@ -563,7 +563,7 @@ class STObject_test : public beast::unit_test::suite
             st[sfAmount] = STEitherAmount{};
             st[sfAccount] = AccountID{};
             st[sfDigest] = uint256{};
-            [&](STAmount) {}(get<STAmount>(st[sfAmount]));
+            [&](STEitherAmount) {}(st[sfAmount]);
             [&](AccountID) {}(st[sfAccount]);
             [&](uint256) {}(st[sfDigest]);
         }
diff --git a/src/xrpld/app/misc/FeeVoteImpl.cpp b/src/xrpld/app/misc/FeeVoteImpl.cpp
index 58f62e95bdb..8a03f877351 100644
--- a/src/xrpld/app/misc/FeeVoteImpl.cpp
+++ b/src/xrpld/app/misc/FeeVoteImpl.cpp
@@ -277,9 +277,9 @@ FeeVoteImpl::doVoting(
     }
 
     // choose our positions
-    // TODO: Use structured binding once LLVM 16 is the minimum supported
-    // version. See also: https://github.com/llvm/llvm-project/issues/48582
-    // https://github.com/llvm/llvm-project/commit/127bf44385424891eb04cff8e52d3f157fc2cb7c
+    // TODO: Use structured binding once LLVM issue
+    // https://github.com/llvm/llvm-project/issues/48582
+    // is fixed.
     auto const baseFee = baseFeeVote.getVotes();
     auto const baseReserve = baseReserveVote.getVotes();
     auto const incReserve = incReserveVote.getVotes();