I finally moved on from the Twang Reverb. Guitar Rig 3 has what it calls a "Lead 800" amp. I assume it is based on a Marshall JCM 800, and I am not versed too well in the hallowed grounds of British Crunch but this sounds alright to my ear. I also recognize I need some humbuggies and a nice slab of shorter scale mahogany to really RAWK out, but hey. I am a college student... I am pumped with what I have.
This is a very sloppy demo of Killing in the name by Rage Against the Machine. The point was to get at some more aggressive Marshall tones from the software. Let me know what you think !