Even pickups don't have standard spacing anymore. There's now F spacing.ok so awhile back i did a bit of work on a guitar and replaced the pots, problem is the knobs didnt fit. why in the hell is there not a universal pot size i mean humbuckers an single coils have a standard size? also even if there isnt how in the hell would i find out if the pots and knobs will fit before buying! i mean i have to buy all on web cuz a severe lack of music anything in my area! WTF is goin on!?!