I think these are the best pickups Fender makes. I had both AERO's and Custom shop 60's pickups, although the both sound like a classic jazz, the 75's are fatter. The custom shop's sounded realy bright and bottom shy with average output. The mids dissapeared through my sansamp RBI no matter what knob I turned. The Aero's sound exactly the same only slightly rounder, just slightly. There description of the Aero's says "Heavy lows, distinct upper mids, and round top that's cool for fingerstyle rock, blues, and country. (And '70s-style funk.) Broken-in vibe that's fun to play. On tape, pickups have big bottom for a J, although the tone can get a bit thick." I feel this statement much more accuratley describes the 75's. They still have a classic tone, you just don't have to dig in so hard to hit that warm spot.