I currently own a TH500, which I am very satisfied with. In fact, I also have a TH350 as a backup. I'm contemplating getting another head that could provide me with tonal options that would be considered the polar opposite of the TH. I guess it might be said that I have that already in my Aguilar AG500, but that's around 28 lbs in it's case, so nice, light, & compact would be preferred. Plus, I've had the AG500 for a while and part of me is just itching for something different. I used to own a TecAmp Puma 500, which I really liked and sometimes wish I still had. The Puma 900 is the model on my radar this time around. I like what I've read/heard about the GK MB Fusion 800, and it's nice that it'd be several hundred $$ less than the Puma. Price-wise, I'd say the Puma 900 is stretching the top end of my comfort zone, so I don't want to go any higher. I play mostly classic rock mixed with some other stuff thrown in depending on the gig. Once in a blue moon I'll get asked to do a P&W gig. Almost totally fingerstyle. Jazz basses, a P bass, and a Music Man HH are my main weapons of choice. Play through either a pair of Bergantino HD112s or a pair of DNA DNS-115 neo cabs. So, the Puma 900, MB Fusion 800, or ... ?