Someone posted with this question in February and it was never answered. I hope someone has figured it out. I've tried several combinations of stereo cable from external switch on the Octa Switch to the remote switch input on my Peavey Bravo. It take a RTS plug from a 2 button footswitch for channel and reverb. Peavey says tip is reverb and ring is switch. I've wired tip to ring, tip to ground (read it somewhere), mono tip to ring, and a straight stereo cord. Nothing works. Has anyone had success with this. Carl Martin and their rep in the U.S. aren't helping.