I'm his brother. I was in the Duramax. I'll agree with him, the track does blow. The only reason I'm cutting my good 60ft times is because I run in 4x4. I drove his car in two passes and there wasn't anything you could do for it to hook.
I'm going through his slips and its a constant 2.2 60fts and worse. To bad you Camaro guys aren't AWD....