I picked up a fender deluxe P/J passive precision bass, the older MIM ones. Most of the deluxe series are active but this is one of the first passive ones. Both pickups have been changed to sd basslines pickups. The pots are pretty bad on them and I want to replace them. I have ordered new pots for my other precisions before, simple 2x250k pots. Would I need to order 3x250k pots to replace them. Vol/Vol/Tone. I am not too familiar with the jazz p/u as far pots go! I am mostly a precision guy. Any help would be appreciated. Thanks!