I bought a pair of Asterisk Ultra Cells months ago and had a really hard time getting myself to wear them due to the difference in shifting and braking and the overall strange feel of my leg being bound up from thigh to toes . After straining an ACL while the braces sat in the trailer I forced myself to wear them no matter what and I did to the point of wearing a hole in the back of my knee on a long 40-50 mile of single track . I picked up some EVS WEBs to let the hole heal as the straps are different . I ran up to SC 2 weeks ago for the Longcane ride ( was awesome by the way ) and I'll be damned if a 5-6 " pine didn't jump in the trail while I was honkin along prob 25-35 mph and took out my left knee and my pipe (KTM 300) and sent me down the trail solo for a few feet or more . I was wearing the WEBS and knew I just took a really hard hit that might end my day at 20 miles into a 98 mile run .....I shook it off and motored on and had a great time all the while keeping my knee moving before it got stiff and to swollen to ride . It looked bad when I finally got in and checked it out and hoped nothing was seriously screwed ( the next morning pic ) ] A little tender still but good to go today , my pipe was molded into the starter and frame and didn't make it but thanks to myself and quality gear I ride on , there is no doubt had I opted to go without I would be recovering from a major problem . I do think I would have been better wearing the Ultra Cells as the patella cup rides on a shin and thigh plate and the Webs cup is floating but it did it's job spreading the impact over a larger area . Wear the gear !