I have a Whiteface Rat Reissue that I've had a love/hate relationship with. I enjoy it a lot as a low gainer with a bit of overdrive. I would like to use it as a high gain pedal. Not fuzzy but just a nice, thick distortion. I have found it to be a little thin sounding at higher gain settings. I have the gain set to about 10-11, filter at 2-3, and the volume at unity. I have had some issues figuring out the filter control. Sometimes it's been set so it cuts through too much and is piercing. Other times it's been set too low so it doesn't cut through enough. Any advice here? Is the filter control the trick to getting it to sound thicker? I'm playing a Strat through a clean amp, which I've also heard could be an issue. I was using an SL drive for higher gain stuff with pretty good results, but it lacked the complexity and unique qualities of a cranked Rat. I liked the sustain of the SL but I don't feel I get the same from the Rat.