Thanks a bunch. That was very helpful info. I'll definitely check out iRig2. One of the things I have wondered about with respect to some software I've seen and also some pedals (e.g., this one) that are suppose to give you the sound of a certain type or style of amp is that you're playing through another amp typically. So if you have some software that is suppose to impart the sound of a Marshall stack but you're playing it through a Fender Twin Reverb, how does that work, or does it?