I'm trying out some ideas for an adjustable depth control for the tremolo on the Excelsior. I put up a quick and dirty YouTube video and would appreciate some feedback from you Exy players (or just people with an opinion. ) My "manifesto" for Excelsior mods is that anything in the top chassis has to be a top-of-board mod. It's just too much trouble to remove the board, and there's the danger of breaking something. So this control is currently two wires that attach to component leads on the board. It has the stock depth and no adjustability in pull-up position and starts its adjustable range in the down position with somewhat more depth than stock. It goes up to full-cut, throbby intensity, with a nice bias-modulated "swoosh." Please give it a listen and tell me if you think it's useful and if this is how you envision the control working. Clicking on the pic takes you to my tremolo page. I don't think I can embed YouTube links here.