Re: Gn*R on Marshall Shredmaster
Well, to start, try steering away from the "high treble, low mid, high bass", sort of settings.
Then try lower gain but higher volume. Tweak the tone and volume on the guitar, it might not have to be at 10 all the time.
And it's always good to test it out against a band as some say Slash's tone is great only when heard in the whole picture.