Thanks for the help. I am pretty sure that the problem is in my batteries delivering low voltage at high current. I do not want to change batteries as money involved and so does weight considerations. It would also not be so smart of me changing the cutoff voltage from 9v to 5v, since I'm new to electric, and might do the stupid mistake of emptying my battery too much.

Since the Tensor hovers at 1/2 throttle with my setup, I really don't need to get beyond 3/4 throttle. The problem is that while trying to get out of hover I pushed the stick all the way up by instinct, and got into the cutoff range. If I could just limit the throttle travel, then it would be the simplest solution. The question is how to do it. In gas airplane I would just program the travel end point by the transmitter. The Pheonix will not let me do that with the default settings, since it is set for self-adjusting throttle range. I wondered if I could just change that to fixed throttle range (I know that the ESC has this option, but the manual says that this is used for helis only....). WhtBronco, may I understand from your answer that my solution is reasonable ? What does the self-adjusting throttle range is needed for ?

Thanks,
Yaniv.