[Batfish]

I have used an MGM 12012 and Lehner basic xl4200 in both a XXX-T MF and now my Jato conversion. In both applications on 6-cell 3300/3600 packs and 2s lipo, the combination easily out-performed a 12-turn brushed motor.
My buddy (who owns the local shop and tracks) runs an Orion Revolution 11-turn in his MF2 and BK2. He has told me that my brushless combo in both applications has excessively more power than his 11-turn.
Regardless of what you see on paper and in formulas, there's no replacing real-life experience.

I'm very pleased with my xl4200 / MGM 12012 combo. The only thing I will be changing is to switch to a new MGM 80 amp controller when they are released. I will use the 12012 in my buggy conversion again.

camel_rc - The first gen MGM (the ones I have, at least) do not have a programming option for reverse lockout. However, the controller will not move into reverse without going neutral first. This means that you can go from throttle to brake without reversing. I am using it this way, with the y-harness, in my MGT and Jato. If you let the controller sit in neutral while coasting, then push for brake, the motor will spin in reverse if your vehicle has a one-way in the transmission.