Here's another one I've been thinking about:

6.31.2 16 inch wheels must weigh 16.0lbs or more. 17 inch wheels must weigh 18.0lbs or more. One
piece aluminum spacers welded to the wheel will be included in the total wheel weight. Detachable
balancing weights will not be included in the total wheel weight..

My understanding is that this rule came about due to the availability of Z06 front wheels for the Camaros. I wasn't around at that time so correct me if I'm wrong. For the CMC mustang the wheel of choice is the Enkei RPF1 17" x 9.5" +38mm offset with a welded on aluminum spacer. Earlier in the season I had heard that that was going to be changed to a standard spacer so that we don't have to booger weld spacers onto expensive wheels.

Is this being considered for a rules update for '19 and/or the '18 national event?

Alternatively, it would be even better (for my bank account) to drop the number from 18lbs to 17lbs - but that's just my opinion.

- Josh