i have Hamer Cruise basses with the 2 tek bridges. they are loaded with Seymour Duncan Sjb-1 pickups. these are a fairly ( not hot rodded ) straight jazz replacement. i am thinking active electronic might be nice to add some more versitility. im not unhappy with the sounds that i have but of course more tone tweaking could be usefull. so.. has anyone dealt with passive p/u's with active electronics? if so what have been the experiences? suggestions? general remarks?