Does anyone know if after a rollover should you replace your helmet with a new one? I dont know if I hit my head on the rollball, cage, etc as there are no scratches/dings on the helmet, etc. but would rather be safe then sorry right? Any suggestions on this? I know the guys from UPR would probably have some good knowledge knowing the ratngs etc, for helmets, but I am looking for everyones opinion....Putting in your 2 cents is recommended!