The neck pickup from my Lace Sensor J-Bass set will not fit the neck pickup route of my Warmoth J-bass body. Maybe I should have done my homework. I guess this is what can happen when a guitarist tries to build a bass. :icon_biggrin: The width of the pickup is less than 3 5/8", but the screw spacing is the same as the bridge pickup (1 9/16"). I am guessing they did this to make it also fit MIM basses. :icon_scratch: Before I order any more pickups, does anybody know of other pickups that DO NOT fit so I can avoid them?