I was looking and reading up on some of the new sensored brushless motors used in the rock crawling rc hobbies. The torque is amazing and it likes like the potential "stuttering" effect has been solved.
Thanks for your response. Unfortunately, I always forget the golden rule that simple is better (brushed motors and trany's work well).
Exactly, few tanker here in Taiwan once fit their tank with brushless motors years ago, and eventually find it doesn't do anything better but costly, so no one is trying to use brushless motors now.