I've been digging the TH and Baer stack for a few months now (active Jazz with rounds). I stopped my search at the TH and never actually tried the SL (though any time one's up in the classifieds I usually lurk around...)
To me, I think Aggie's do the extended range Jazz snarl very well. I've interpreted the description of the SL to be a better match for a P, IMO.
Overall, of the one's I considered, there's kind of a spectrum from the Orange Terror (mentioned above) - TH500 - SL900. It's like going from a 100 Grand to a Snickers to a Milky Way. Oh and they're all fun sized.
Edit: Right, my point is, I have a hard time making up my mind, and I thought the TH was a great "goldilocks" solution in that class of mean micros.
I have a Valenti PJ5 which is very much more P than J and a Carvin SB5000 with single coils which has that jazz feel and voicing. My PJ5 is a great match with the STM900 through a pair of ML112 cabs but the SB5000 not so much. I built a twin 3012HO loaded cab with a HF horn crossed at 1900 Hz and the opposite is true. The SB5000 is perfect through the STM900 with this cab but the PJ5 sounds a bit dull. Same amp and basses but two cabs with different voicings. The PJ5 tone has more focus to the mids and is not as wide which seems to provide a nice punch with the Baer ML112's. The SB5000 has a bit more booty down low and more upper mid and treble presence. Perhaps the Aggie TH500 voicing (more present low and middle mids but not so big in the lows) would be a better fit for the SB5000 with the ML112's. I'd like to give that a spin. Too bad Aguilar doesn't offer a TH800.
