Got the motor-generator setup done today so was doing some proper testing! I can safely say its a beast, the LiPos were screaming.

This was after about 30 minutes of absolutely thrashing it. The load was about 9.5kW at 12S. Its quite cool to watch the wire move as the current increases . The beeping is our battery monitor telling us the voltage had dropped below 3.8V from 4.2V...