Thanks for the tip, Singtall.

Btw, I've upload a couple more presets.

http://www.elevenrackpresets.com/Details/MBF-Marshall-blues.html: This one is kind of dirty blues-ish.

http://www.elevenrackpresets.com/Details/MBF-Ronnie.html: Sounds a bit like Ronnie Le Tekro.