Yea, they look great for Endurance! I probably wouldn't use them to jump though. You'd probably end up relying on them, which isn't good, and I just see them being way too dangerous. Sure, it will save you in places, like they show in the pictures, but what about the other spots where you are just going to fall off, and you can't get your stirrups out? I'd have to have some sort of breakaway feature, just in case. Otherwise, very cool :) Wonder if they are show legal?