V1 - For common 3PDT standard size foot switches, 10mm diameter
V2 - For smaller, tap-tempo SPST style foot switches, 8.5mm diameter
BIG BORE - For larger 3PDT foot switches up to 11.1mm
Skirtless variants are for more low profile foot switches with a shorter than standard shaft.
The Skirtless variant is identical to a standard button exc...