if you're asking questions like these, i'd be willing to bet the PX bindings will be fine. i have px14s on my obsetheds and they work great. i've had no issues with durability after they changed the heel to a wormscrew instead of the tab, so just make sure you get the PX12/SAS120 with the wormscrew heel. it's reinforced on the sides and is generally more solid, but a little heavier. stay away from the z12 at all costs. it's a plastic toy.