Hey, I ordered a seymour duncan 1/4 lb P and J pickup and i was wondering if their gonna fit and work for my current rig. Their going into a oscar and schmidt(by washburn) bass that isnt real expensive but i love how it plays and the low action and everything and it sounds alright, anyways... that bass going into a SWR SM-400 then into 2 yorkville 1x15's. I play Metallica, RATM, Iron maiden and some other random stuff. So would these pickups fit in? are they made for this kinda stuff?