Don't use the brake wiring;) It reacts too slow by the time the pedal comes all of the way up to turn off the brake lights. Use a switch because racecar! LOL That way you can let off the switch and the new found power release will override the brake pedal coming up and get you going. Of course with the 2 step, and converter you already have you should step up to transbrake too imo. Would make for a nasty boosted launch.