What are people doing (or does anyone have a preset) for getting a "Live at the Fillmore" Duane/Dickey classic Les Paul lead sound? Seems that all the Marshalls are giving me a (for lack of a better description) high end "crispiness" when I want smooth and fluid. I'm looking for Duane/Dickey/Clapton (Beano and Cream)/Haynes lead tones. Any suggestions?