It’s been about a month now since I put these on my wife’s XT6. Went with the stock size, 235/55R20 H rated. I’m very happy with them, the wife doesn’t really notice a difference. I glad to report that they a no louder than the OEM Michelin Primacy Tour A/S tires I pulled off. Those were down to about 4/32” at 31,000 miles. I was really worried about the road noise, and the reviews are all over the place. They’re quiet on the Cadillac. They drive great in the hot and dry, great in the little bit of rain we had this week. Being that this is an El Niño winter for us in north Texas, I wanted her to have some good tires just in case what the weather man says is right.