So I am going to try the C hub mod. I bought the carbon fiber c hubs and I am going to attach them to the rrear bearing carriers and then attach the turn buckle in the center hole of the c hub. What I am fuzzy on is this. Some people say to raise the ballstud on the c brase between 3 to 8 mm. To anybody who has did this how much should I raise it and does it really give good rear traction.