I recommend Jason at Wheel Works in Livermore if you need an alignment. He did my C7 this morning and the car finally tracks down the road like I would expect it to.
The car pulled to the right when I picked it up from the dealer. They did a free alignment. This corrected the pull, but I still had a right drift. I brought it back a few weeks latter, the dealer confirmed the right drift, and did another free alignment. I then put 1500 miles on the car but it just never tracked down the road like other cars I have owned. People told me it’s because of the tires, race car suspension, it’s not a Lexus, etc. I decided to take it to Wheel Works. They measured the alignment and noted that the rear wheels pointed in one direction and front wheels pointed in the opposite direction. They said the wheel angles compensated each other and caused the car “sort of” to track straight but this is not the way to align a car. They then precisely aligned the car to the middle of the specification while I watched the computer screen on the Hunter Alignment Machine. I test drove the car with the tech in the passenger seat. I noted that I felt I was applying slightly more left force to the steering wheel than right force to keep a straight track down the road. Back to the rack and a tweak to the baseline spec but still within tolerance. Another test drive and the car brought a smile to my face. Finally it tracks like I would expect.
For those in the Northern area I suggest "The Alignment Shop" in Fairfield. We went there to have a more aggressive camber since we like hard cornering and wanted a bigger contact patch when we were doing that. He did a great job. Rich from Abel suggested him. We couldn't be happier. He does 'regular' alignments too. Costco recommends him up there. Need an appointment though, as he's a one man shop.