RE: Multiplex Twister EDF
Rob,
With a 16C 2100 battery you'll only be able to draw about 30 amps. Not nearly enough for your setup. If space is an issue you could try one of the new TP Extreme batteries, they're supposed to be good to 50 amps. The other option is to use a larger battery, but I'd try and stick with a minimum 20C discharge rate.
Andy