Blitz Tactics Repetiton Mode

[spar4868]

Hello,

I have one issue/question about this mode.

I know the maximum level for the repetition mode on this site is Level 150.

The question is: Does the puzzle actually get harder (in terms of ratings, say like 1400 elo - 2500 elo) in respect to the levels? I was able to feel the difference between level 1 and 20, but I wasn't able to feel much difference between level 20 versus level 150 puzzle.

Thank you,