Nice job, and great info! In the end, I have nothing to compare to so mods may pretty minimal. I was not aware that the Classictone '78 had a variable secondary as well. That may have been a game changer even with the mess of extra wires. Oh-well, I have the '21, no second guessing either way. I will stay with the eyelet the Mojo sends as I have no issues with that. I want a clean, stock build that works right off the finish.