bigdad i don't know if you caught a look at the maroon 65 coronet 500 at tulsa ,i think high 9s.well she popped a slick off the bead on launch at mokan,it was the right rear and it launched hard left ending up in the left lane gaurd rail facing the starting line,not a lot of damage but screws would have saved the day there.they were running slicks no tubes.