RE: Predator 90 but..
I've been looking pretty closely at the Pred. gas as well. I had a chance to eyeball it a little at Toledo and it looks great. Haven't read alot of info about performance yet, but I'm sure it's plenty capable. There's a few other other nice gassers out there and MA is supposed to have the Fury gas out sometime this year. That thing looks awesome!
Vario and Bergen both make gassers. I haven't read anything negative about either one (except maybe that it can be tough to get parts for Vario's?).
Ben