Hmmm, how would one simultaneously change amp channels AND switch in-line effects loops, one dedicated to each channel, with a single stomp? Enter the Loopmaster Clean/Dirty Channel Switcher, with its Green LED/Clean channel and Red LED/Dirty channel. I'm sharing this in case it becomes a solution for someone else's needs, like it did mine. I also wanted to mimic EJs 3-amp setup in a channel switching amp, each with its own signal path if possible, so Brian added a switch to engage a separate Blue LED/Dirty Channel Subloop when I was in my amps Dirty channel. My amp's clean channel is set for crystalline cleans with some underlying warmth, and the distortion channel is set for a very light overdrive, which I normally hit with dirt pedals for the heavier, more sustaining stuff. Brian's modified pedal mimics the 3-amp concept with separate signal paths quite nicely. Heres what I can get out of it: 1) Green - Clean (compressor and/or chorus to taste). 2) Red - Very Light Overdrive courtesy of the amps low-gain setting (treble booster and overdrive off). 3) Red - Rock Rhythms/Leads (Treble booster off and overdrive on). 4) Red - Notes exploding off the pick Leads (both treble booster and overdrive on). 5) Blue Fuzz. Nuff said. To finish my picture, I have a delay between the Loopmaster out and the amps input. In the effects loop there is an EBVPJr, with a Pitchblack+ hanging off of Jrs Tuner Out. Wish I would have had one of these 10 years ago. The versatility this affords, by eliminating multiple stomps to switch channels and their dedicated effects, is quite liberating.