I have an early (v1.2 I think) Storm Drone 6 and one of the motors has just packed up. It is labelled : Storm 2212/930kv and carries a twin hole left hand ET9055L prop. However, the labelling on the motor is exactly the same as those carrying right hand props, so I'm not sure that handedness matters. Helipal no longer have these motors in stock and have recommended that I replace all 6 with the newer type. Obviously, I would rather not do that if at all possible. Happy to pay any reasonable price for a working motor (or more than one - as it would be good to have a few spares). I don't mind whether second hand or new, as long as it works !