The Mesa Boogie Bigfoot is an interesting footswitch. It’s for a three channel amp which makes it far more complicated than a simple Clean/Distortion footswitch. It uses intelligent switch (digital gates) for all switching which makes replicating it difficult. For that reason the best option was to rehouse a Bigfoot footswitch rather than build one from scratch. The FX loop switch was never used so it was wired to be always on. Above is the considerable size savings- 7.5″ wide rather than the original 13.5″ wide. I may be biased but the bare metal looks better to me too!