I read your review at Harmony Central and I would like to try your effects loop mod on my Super Champ. I took it to a guitar tech and showed him what you had written. I thought that would be enough for him to go on, but he said he needs more info. He would like to talk to you or get a schematic if possible. Otherwise he says he would have to design the mod himself and it would cost more than could be justified for this amp. Can you help me? Is this something that could be conveyed to him through an email? I'd sure appreciate any help you can give me. Thanks.