I've had one of those Fender Jazz 24's for a couple years now; it came with the Seymour Duncan Basslines jazz pickups. Lots of control over the tone, but I could never get enough punch out of them, and they were kind of noisy (hissed a lot if the treble was too high on the eq) through my Carvin rig.
After listening to sound clips for several different options I decided to install the EMG J-set a month or two ago. Big difference - lots of punch in the lower-mid range, no noise, simple install.