Anyone use theirs? When I plug anything thru it, the signal gets to the processor (FX and sampler). But the signal coming back into the FX return of the amp is very weak. I know that the processors' output is plenty loud, the cables are good, and the Wet/Dry mix control is boosted. Also, why would SWR not include signal from the FX loop in the DI signal? This makes no sense. Any suggestions on setup? In the FX loop I am using a Roland SE70 and a Boomerang.