I owned an AST a few years ago which I loved with the exception of a couple complaints. These complaints were fairly common and were apparently remedied with the advent of the AST Pro. I had always planned on getting another AST when the head version came out, but for some reason I am really drawn to the simplicity and convenience of the AST Pro, not to mention it sounds great in all the clips I have heard. I think I have had enough of the endless pursuit of cabs/speaker combos and all the extraneous gear lying around that a head seems to involve. In these times of recession, I am looking to streamline and simplify....(with another boutique amp, yeah I get the irony). At any rate, has anyone compared all three? I will definitely not get another regular AST, but since I have owned it, it serves as my reference. Do the Pro and MKII differ from the AST and from one another at all? I am sure the reverb and trem are identical on the three, it's mainly the picking dynamics/fast responsiveness, harmonic overtones, and clean tones/headroom that I am looking to compare. The cleaner the better, which is another reason I am drawn to the Pro. Thoughts?