Just bought the Seraph and this will be my first season on it. Talked to several Seraph owners and the common denomanator between them is dont go below about 55 on duro,no matter what conditions of the track. They also seem to all agree that on burris get tires trued and run full thickness,Seraph are very hard on tires and need to rotate rights every race. Some like round cuts some flat,plan to start flat and see how it works.ill resurface after every race and just want a prep to get good bite not drop duro any. Burris 33s are at about 55 on duro out of the box. Gonnna run 8.5s on 10 wide wheels on rights, a 5 ona 6.5 wheel LF, but cant decide whether to go with a 6 or 7 on a 8.5 wheel on LR. All the Seraph guys are different, what are everyones suggestions on LR tire width?