I have seen this mod using a special stereo plug that is shorted for the Tremolo to be on all the time. I discovered a very simple mod where you can use ANY mono plug, patch cord, guitar cable, speaker cable, etc.... and have the tremolo always on. All you do is swap the white and grey wires going to J6 footswitch jack. Then you carefully peel the label off the footswitch and reverse it. Now the footswitch works and is correctly labeled. After this is done, you can plug in ANY mono plug and your Tremolo will be on. You can leave you footswitch at home. NOTE: If the mono plug is shorted, then the Reverb will be turned off. Also the attached photos show the jack in original config.