I haven't had them very long but I am pleased so far. I have not experienced them spinning, but I really tightened them down. I like the stirrup feature but I also like that there is more room (surface area) on the actual peg to position your foot. I also like that they extend a little further out from the foot control bar, allowing a more relaxed leg position for me. For those of you with the rotating problem you might try small rubber washers on the hex bolts and adapters. Look at my photopost of the rear view for a look at the switchblades.
Brian
