My point is that bounce is bounce. I hadn't caught that bit about 1 single vehicle crash a year. If that's a factor, hardtail frames should be required rather than banned. There are usually more than that every 20 minutes in the area of the Rock Store with sport bikes. You get a lot more "seat of the pants" information about whether you are getting near your limits, and that's why there are so few single vehicle crashes with hardtails.