I re-programmed the esc with my transmitter and on the stand it worked fine, also in my 1st heat, but in my second heat it let me down again by not reversing when I got tagged & put against the boards, costing me a lap on two occassions. I've bought a new esc for my son and after my problems and continually being let down by Speed Passion I've bought another brand. I've got to try to sort out my esc before this Thursday, but I just don't have the confidence with this esc.