My advice is to keep the sensors plugged in on the wheel well side but NOT plugged in on the brake pad side. Take a zip tie and tie up the loose end to the control arm or something out of the way. Reason for this is on the track I imagine you go through pads quickly and those sensors cost about $20 a piece. If you are monitoring the pads yourself then no need to keep burning through sensors.
**disclaimer - assuming you are monitoring you brake pad thickness with your regularly with your eyes** BECAUSE RACECAR you should.