Something I have yet to see anyone mention is the difference in the track. MSRH vs. MSRC. Run your car hard at MSRH for 40 minutes and let me know what is left of your car at the end. There will be more people going off the track at MSRH because of brake failures. You have three high speed braking zones. :shock:
The other difference is the sustained higher rpm. MSRH is a high rev track. Oil temps and water temps are going to be up there.
If you are going to double the time for a race, make it worth the while and double the points.
David