I was listening to some early Marshall Tucker tonight. Boy, what a fat, sweet tone! I read somewhere that his rig was just 335 or LP > 2 Twin Reverbs > 2 Marshall cabs. I am hearing a bit more gain and compression than I would expect from such a clean amp as the Twin, plus I think I hear some slapback in there too. Do any of y'all have any insight into how he got that fat Gibby tone?