ive been playing for about 2 years this christmas and im thinking about upgrading the pickup in my first bass. its a p-style johnson. i also have a warwick rockbass with active jazzes and im looking for a nice passive p to give me a wider range of tones. i was looking at the dimarzio model p because its cheap. i was wondering if it would be a good decision to upgrade, since the pickup is pretty cheap, and would it make much of a difference in sound compared to crappy stock johnson pickups. i used the search function but couldnt find the right information, if anyone has any information or experience with these, it would be greatly appreciated.