Not to hijack a thread, but check out
this Alessandro offering:
Guitar Potentiometer
"Finest guitar pots available. Alessandro proprietary custom audio taper. This audio-taper pot eliminates the "jumpiness" of the lesser-quality pots. Alessandro custom 1W Military-Specification Carbon Custom Taper Pots Come Standard with:"
1/2" bushing
1/4" solid Stainless Steel shaft
Requires 3/8" mounting hole
Stocked Values Price*
250K Solid $50.00
500K Solid $50.00
250K Knurled $50.00
500K Knurled $50.00
Not to start another Hovland-type thread, but
Teddy