I run a 6.5T brushless in my cyclone, and a mod brushed 14T double(if I remember right) in my tc3. I was looking real hard at the dynamite 3300 earlier today. I think when I get the extra cash, I 'll pick it up and try it. As near as I can tell it is equal to a 13.5t brushless. Pretty close to a 19t stock I think... I would say the Brushless set up is the way to go... it's more efficient, and low Maintenance.