Unless its a race without motors, I think your car will be fine spinning wise. After 2 or 3 race days, things will settle into their natural rest and your car will spin even more. But honestly... I understand that every little bit helps, but if the car spins FREELY, i think youll be fine. If it spinds but has hesitation to get it going, you should probably re-align some of your drivetrain. I replaced my bearings with teflon seals once they went bad.. and my car spins for a few seconds... nothing big...