diff --git a/src/depiction_targeted_preproc/pipeline_config/config_presets/dev_presets_timstof.yml b/src/depiction_targeted_preproc/pipeline_config/config_presets/dev_presets_timstof.yml
index 1f8ba42..b24190e 100644
--- a/src/depiction_targeted_preproc/pipeline_config/config_presets/dev_presets_timstof.yml
+++ b/src/depiction_targeted_preproc/pipeline_config/config_presets/dev_presets_timstof.yml
@@ -14,9 +14,9 @@ calibration:
     reg_model_unit: mz
     spatial_smoothing:
       type: PercentileFilter
-      kernel_size: 5
+      kernel_size: 7
       percentile: 0.25
-      kernel_shape: square
+      kernel_shape: circle
     min_points: 3
     peak_filtering:
       filters: