Thanks Volker. The exit off of 4 remained very stable throughout the run, that is why I felt I may have been leaving something on the table. It never twitched. Maybe I wasn't driving quite hard enough off. There wasn't any need to push, I was easily faster than most . I will keep in mind your suggested changes for the future. What is the max tire temp you recommend? My goal with your sets (with exceptions of course) has been to run between 230 and 240. Generally with very good results! Thanks again.