The chart is wrong for me (I’m using the 750 version). Although I skied thousands of passes with it set at the chart recommendation with no problems, when I had the prerelease it was a violent crash that I never want to experience again and I hope no one else does either. @skialex the system has play in it when new. The hole in the end of the release arm where it bolts to the aluminum block is noticeably bigger than the diameter of the screw that holds it. It’s snug when locked in the boot but I don’t know why they designed it that way.