I've got a question for you local track guys. I took my 996TT to Thunderhill for the first time and had a blast. However, I did notice that the PSM seemed to kick in more at Thunderhill than I've experienced at either Sonoma or Laguna. In fact, I've never noticed the PSM kicking in at those other tracks.

Has anyone else noticed this at Thunderhill? I'm thinking it may have to do with the elevation changes and the several turns where there are hills and off-cambered slopes. Unfortunately, it's not apples-to-apples comparisons since I am running a new set of MPSS instead of MPS2 tires.

Here are some of my favorite pictures from the day -- the lighting and colors are pretty good in these photos: