If you don't hook up the cable, your sensorless, period. I don't like the waiting for it to find the rotor when your marshalled, and we have a high speed straight, with a 90 at the end, I took my castle out when every 3rd lap it would accelerate for a split second when I hit the brakes, because the esc is guessing wrong where the rotor is. You won't have much problem outside, but indoors your going to wear the walls out from hitting them. I put a GTB2 in one of my trucks, with a D3 17.5, turned 3 notches of timing and love the results, precision brakes and pinpoint throttle. no fatom spinouts