Originally Posted by rskoncepts

R1 is the pinnacle at this time. If you can't get that, next is the MMX6s, MMX8s, then RX8. I'm sure there are others out there but this is what I'm familiar with. If you're planning to run the 4pole (whichever manufacturer), MMX6s appears to be quicker than the MMX8s for an unknown reason. I'm assuming it delivers the power better. Like I mentioned, the Ghost RC MMX6s is new and seems to be promising.