Nice setups
I agree totally with upping the volts to get the amps down and the hacker B50 series is a solid motor. I run F3J, and converted a number of 'b's to electric with the cyclone elite series motors, spinning 22" props. The torque proved to be quite a handful on launch, as you couldn't launch over 25% throttle before you had enough airspeed to point it verticle, then watch it accelerate as it was going straight up. Such that we dont' allow these types of aircraft no longer at our local club's field, instead I have to go elsewhere to fly them with a bit more space and ceiling height.