I ran my BL in my XXXT for the first time yesterday. I think I may have been overgeared by a tooth or two but it was awesome. So much punch, more top end than was needed. And I didn't have to break out the motor spary all night!
I hate cutting motors in a dirty environment. This is the perfect solution. I just need to get used to the lack of drag brake but at the same time, I need to dial out a lot of brakes from the radio. It has no drag brake but when you hit the brakes, they pertty much lock up the rears. Anyone else notice this?