no problems yet. skipping feels kind of weird--pulling up with the front foot doesn't seem right. a badckwards swipe feels better, but doesn't lock up the rear as well. still figuring it out, but god, it's good, and the "clipping out while stopping" fear seems to be pretty unreasonable. and i'm using a friend's beat up old spds till my beat up old spds get shipped from idaho...so they're not even all that fancy a system.