WEll, i just said screw it today. I wanted to wait till i got to the track one last time to see how my car would trap on the jug, but now i have been rained out the las 2 times i could go. So i bit the bullet and just ordered the 4.10s. I guess i will see how they roll with a 26" tire before i order the 27" tires. I think with a m6 they should be perfect on motor anyway.