For the Trans….I actually prefer the stock components with the weight, even for 17.5. Sure it slows the acceleration, however, if you don't lock the slipper it doesn't matter since your losing efficiency to gain steady usable traction which is really what makes the car move. The car is way smoother and easier to drive too. BTW…B5RM for sale now. Just built my first DEX210(old short chassis with updated flat arms in front), running MM3 in 17.5 and the car has such good manners. Its way better than any MM B5 I have driven.