Council to improve performance ....

[suicideneil]

Indeed, 7s A123 is the maximum allowed by the spec- if that esc were to diw, it would cost $$$ to replace out of warrenty.

I would say the medusa 36-1600-70mm would be plenty of motor, but like as has been said, you need a 6s2p or 7s2p setup to get the best power and performance out of the setup, A123s aint all that great in 1p configurations unless you are running a high voltage setup with a low kv motor- 10s and 1100kv for example..