I considered one of those but was scared off by the price. Only did the Neu 'cause I got one 30% off they had laying around. Not sure what it is with the A50 and the Wind, but Hackers definitely kick some butt from what I've seen at contests.

Knowing what I know now, I'd either go the A50/8S route (most likely), or go with a Neu or Hacker inrunner. I actually thought about just getting the A50 but really didn't want to buy a new fleet of batteries with the motor.