Motor suggestions?

[solomon7]

I have a Mamba max and am running 7.2V (could go up to 7Cell) on a crawler weighing 5.5 to 6.2 lbs. Gearing is about 50:1. Tried a few brushed and BL motors. Haven't found the right motor, yet:

I'm looking at selling the MM for a rooster CE with JP customs 50T crawl max (more drag+torque+wheelspeed?) ,MM with a JRH revolver or crawlmaster, OR selling the MM and getting a Novak Goat 21.5 combo (sensors are good right?).

I'm looking for a STRONG drag brake, but no freewheeling on low throttle descents. So far i have only seen this with my rooster CE and a 55T v10, but just not enough wheel speed. Want to try BL so the MM is waiting to go in something if it will give me what I'm looking for, or I'll sell it(nib) and get something else.
Anyone have experience with these combos? I've searched and read till my eyes hurt. Thanks guys!