have not tested these out yet just bought them to get ready for next season,but my mistake was buying them size 9-11, im boot size 11 but even though it says 9-11 your boot will be too big on these. you would either have too much heel-drag or the v-strap wont be centered. so i had to exchange to 11-13 size binding. i did hook them up to my lib-tech and these bindings do add some extra pop especially when you have the 2.5 wedgie they are light and have massive hold on to your boot without any pressure points. i recommend them.make sure you get the right size.