I wouldn't put a MM in my XXXT because with my novak SS5800 it's plenty fast already , too fast really. I can't thinck of the MM as usefull in a 1/10 truck , neither a novak 5.5 or similar. Not if you're racing anyway.

I know speed is what most rc guys are after but when it comes down to turning fast laps , less means more , less speed and more torque , that's what it's all about in my opinion

BTW I'm also located in Belgium ( Gent ) nice to see other Belgian people at this US forum.