OK, I have another question. What are the amps being modeled on the Vox VT30, Fender G-DEC, Peavey Vypyer, and any other amps you can think of. This is probably a no-brainer for those of you familiar with a thousand different amps. I've been able to discover one description.

I found this for the Roland Cube30x:

Amps:
Clean: Based on Roland JC-120 jazz chorus
Acoustic: Based on Boss acoustic simulator
Black Panel: Based on Fender Twin Reverb
Brit Combo: Based on Vox AC-30TB
Tweed: Based on Fender Tweed Bassman
Classic stack: Based on Marshall JMP1987
Metal: Based on Peavey EVH-5159
R-fier: Based on MESA/boogie rectifier
Dyna amp: An original amp sound by Roland that responds to picking dynamics

Thanks a bunch.