I've run the EA Monster and EA ROAR motor on our tight technical track. The monster turned much better lap times on this layout. I think the ROAR is stronger on tracks where you spend a lot of the time in the high rev range where this motor is strong.
That's just my experience. In my OPINION I think the monster would work better for you.
I'll be trying the ROAR again on our new (more sweeping high speed) track on Wednesday. I can get around this track (with not the best line) at full throttle all the way around with the monster. If it doesn't turn better laps than the monster on this layout it will go back into the pit bag until next summer when I run on the big outdoor tracks where I can use the top end power of the ROAR.
EA...what do you suggest?