SGdudeSG

Hey, I've been wondering, how do you modify a strat so that it has 2 volume and 1 tone knobs instead of 1 volume and 2 tones. I hear that Eric Johnson was quite fond of this modification. The strat i own is a Mexican FatStrat, i want the tone for the humbucker one volume for the humbucker and one volume for both single coils. I have a feeling this will pretty hard, so any help will be apreciated.