Good morning/afternoon everyone. I’m writing because I seem to be having an issue with one of my basses buzzing/dulling out above the 12th fret on all strings. The instrument is a Fender style bass tuned to BEAD with 50-110 strings. The specs are: Neck Relief @ the 7th fret- .012, String Height @ the 17th fret- Bass side 7/64 and 6/64 Treble side. I recently brought the bass to a luthier for a setup/fret level/dress in which he also decided to add a neck shim. My question is, is the neck shim possibly causing the buzzing/choking? The bass has a Badass 1 bridge and the saddles are jacked up pretty high. Any thoughts or suggestions would be appreciated. Thanks!