Golem, you've learned that people here really hate those other pickups!  Hopefully they don't hate you so much. 

http://www.billlawrencereview.com/  has some info on identifying 500s.  A pair of L500XLs might not be the typical choice for jazz.  But they might sound great to you in your guitar.  If they're cheap enough, try 'em.

Maybe these L-450s are still available:  http://guitarsbyfender.yu...r-sale    They should be a clean, clear, moderate output set.

I think I remember reading that the Q-Filter (or its predecessor) was humbucking, but can't find a reference now.

-Steve W.