I have exactly the same problem: right toe brake on CH Pro USB pedals is dead. But I'm lazy: I just set up the AH controls to run both brakes from the left pedal. Guess I'll have to man up and go find my soldering iron. (A long time ago in a galaxy far, far away, I once had a job assembling circuit boards for custom-built keyboard synthesizer musical instruments. BTW, the instructions in that video on soldering from the "WonderHowTo" site are right on the money.)