taking your ski off to switch the binding is ummm.. sort of nesscary because when you tour, you just might be using skins. but when you take the skins off, sometimes you can be cool and take the skin off without taking your ski off, a trick my telemarking friends like to do.This trick can save time, like 15 seconds, not only does it save time, you dont have to expend the extra energy taking your ski all the way off. cuase shit, you just spent all that energy skinning to your destination....you dont want to blow your heart up or something. So with all this extra time and energy, you would be able to get the first powder turns and have more energy. I'm sold, dukes suck buy the naxos
you weigh a buck 55, haven't broken bindings before and you're not planning on hucking huge stuff. save your money. buy the naxos and enjoy.