I got a chance to use one of these engines at the race in Kissimmee this past week. All I can say is WOW, I was really impressed. After blowing my RBM3 a friend let me use his REDS. The motor has more than enough bottom and torque, and was faster than my RBM3.
The bottom had crazy power but was so smooth and easy to drive, and when you needed it it was always there.
Very impressed by this motor, and WILL be breaking one or even 2 in come march/April