^ is your name Ben? 23 STR? your times are very similar to mine, my tires were squealing quite a bit but I'm pushing the car harder every time, and they aren't the best tire for autox (conti extreme contact DW). What tires are you running? The wheels do look good, are they really mustang wheels or look a likes?
what I've noticed compared to the second run group is that most of them run either slicks or really good tires like R-S3s and the like, so they get less squeal than we do. Marc wasn't able to push my car further, maybe with more seat time but he adapted pretty fast to it so I feel happy about that, looks like its close to the limit with those tires. I've been playing with tire pressures and I think I've found the sweet spot for the contis, that actually gave me better mileage on the street, and every time I'm out there I feel like I'm driving smoother. Having Marc drive the car really helped as I rode with him the whole time and was able to compare how smooth he was on some corners, carrying more speed.
I would consider having Marc co-drive with you, I'd like to do it again, Will too, they have more experience with meoters. If only I could get Bill out there...