You can take bigfoot apart. It is a bell contact. The contacts usually corrode and you end up stomping the crap out of the switch to get contact.

Polish the contacts with brass brush (I use drill), coat with conductive grease.

It takes some force to take apart and put back together.

I usually disable the foot switch on the foot pedal and run a seperate (bigfoot) switch for motor on/off.

I gonna do this on my Minnkota autopilot "watusi bug" foot control. Just ain't got roundtuit.

This allows left/right with one foot and speed on/off with the other. Very easy to used and control boat with this arrangement.