It happens every time you turn on the system, and if I let the motor stop. Otherwise it works great. I thought there may be a combination of paramaters that could make the thing work (i.e. hard acceleration with high timing or something like that) since I've played with some parameters but I haven't hit all the combinations. I have some three or four 2200 3S packs, I am purchasing a couple more to try 9S2P. I will give it a try in an older Genesis I have lying around. I only fly advanced and I hope it will be enough. If it doesn't work I guess it will end up in a smaller (120?) sized plane or a scale job.