Could use a better name but I'm in a hurry.
I haven't seen this anywhere else but I came up with a way to "kill" the fdbk in bypass using a 3pdt. Using Madbeans standardized wiring diagram, do not connect lug 3 to ground. Instead, connect lug 3 of the 3pdt to lug 2 of the fdbk pot.
And where do you connect the ground then?
Lugs 2 and 6 of the 3pdt are still connected to ground.