You might have to do the hard work, of unscrewing the nut on the pot, and having a look. Replace it with the identical depth
I feel like the long shaft is only used on the biggest thickest guitars, old Gibson Les Paul's.
I feel like PRS uses short shaft on all of the guitars, makes sense from a CNC manufacturing perspective.
you only have to order short shaft potentiometers. All holes are drilled the same depth to the deck.
PRS ACC – 4111 if you look at Google images it is clearly a short shaft the only shaft PRS sells to the public.
3/8 of an inch versus 3/4 (6/8) of an inch So long shaft is twice as long, they are very long shafts, You need one heckuva thick maple top.
I changed all the pots on my sig Tremonti Used short shaft CTS.
I think you have to burn 3 minutes of your time.
Garrett is the only one that might know for sure.