You will get the most pull out of the MDS, you just need them to hook up. So I say fix the problem not turn it down or do something for less performance, thats straight up dumb IMO.
Did you do what i said with removing the spring, and reinstalling the cover and see if it binds anywhere. If it really has the power to over rev then you should have crazy track speed, if not then its just slipping the belt, which would be a cause of clutch bind or bad belt.