I struggle with the same thing on my Custom_Bezel_001 presets. Lately I have been using the split scale/X Scale solution to compensate a bit but there are some times when it just isn’t possible to make it look 100% right.
I create them anyway for consistency.
I think your bezel looks fine.
In the end it is all subjective. There are quite a few Batocera users that use my Custom_Bezel_001 exclusively.