Thanks Ascleman. I mentioned the BIg Muff because the day before I was trying to figure out the tone on the solo's of American Woman by BTO and thought it might be a Big Muff (it wasn't). I ended up listening to a comparison of some Big Muff's . For what it's worth, I preferred the triangle out of all of them.

Anyway, thanks for being generous with your time. I DO have plenty of questions and will look forward to your future input. I think I will start a new thread - something like "General question about modeling amps" or "What amp characteristics can be modelled."