I replaced the faulty foot switch in my Vox V810 Valve Tone pedal which is a 808 type pedal, it works fine but the footswitch still pops when turned on/off. Maybe the layout I used was not right & causes the popping. There are a lot of different ways to do wire these up,so I had a look at my SRB 808 pedal & it is wired exactly the same as this attached layout diagram. http://rudemechanicaloz.files.wordpress.com/2008/08/muff-bypass-diag.jpg Seems all the pedals with 3PDT true bypass wiring that I currently have are using different layouts to each other? I think I'll give this SRB switch layout a try but would like to know what layouts everyone else here is using for their foot switch wiring & why some are perhaps better than others?