I built an electric ultimate biplane, and purchased a Tower Pro BMC 25A esc to run it from Raidentech. Their website indicates that you can set the cutoff voltage at 7.5V or 5V with a jumper switch. When the stuff came in there were absolutely no instructions for setting cutoff voltage or programming the brake on or off. I have contacted Raidentech at least 3 times for instructions and received no reply. Does anybody know how to set the cutoff voltage? I am using a 3 cell Li poly battery, and don't want to ruin it by discharging too far. Also, I am using a SK400XTmotor, which is way underpowered. It can bearly maintain altitude much less do loops, rolls, etc. Also, I had to add 84 grams of weight to the nose to achieve balance. My battery is only 1100 MAH, so i figure a larger battery up front will help with the balance. Any help on these issues will be appreciated.