I have tried the Dual again today just to try some extra settings, still think the dist sounds a little bit clearer then the dual though.
Anyway, im kind of disapointed about the amount of noise the unit generates past noon gain setting, at the moment i use it at volume at about 2 oclock and gain on about 9 ish. I really like the ISF controll set just a bit to the USA side, really nice punchy bottom end roar there, at least on my marshall JCM rig. It is an absolute tone freakyness machine, just love it!