So the flash tool worked well? I have about decided that my esc's can't be flashed. They are new model HK SS 25-30 HW card programmable, and older models could be flashed, but these have apparently been changed so they can't. They do OK, but I really wanted to flash them. BTW, got my homemade wood frame quad flying with the Crius AIO Pro this evening. Got some wobble, and I have a long way to go to figure out all it will do, but at least it flies.