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Having used about all of the at binders on the market my $.02. If your not going to use your AT rig just for touring. Dukes or Barons heavy, but ski most like an alpine binding, can ride them inbounds , A few breakage issues not uncommon for a first release of a product. having to take the ski off to switch modes isn't a huge issue for me as after climbing for an hour or two I like top get safe and fuel up before the down. Heel riser adjustment and height is lacking.
Fritchi Diamirs my 1st at binder decent insta tele issues in the earlier models, the shittiest of touring strides frankensteinish, not a huge deal if you never try anything else, fairly good durability, high stack height and crappy ramp angle issues. Become loose, worn, after 100+ days
Naxo duribility issues in early models, good touring stride, anti istatele lock out, easy heel rise adjustment, alpineesc toe Dins to 13 newer nx21 or 22 model looks bomber. Cons heavier, high stack height, older models prone to becoming loose ie losing tortional stiffness with use. Bca = good warrenty
Silverttas not a lot of people on these bigger over the pond, I like these bindings and have been using a Pure freeride for 3 seasons for most of my touring, Pros light 1/2 the weight of above binders, good stride, din to 12, easy heel riser adjust. Mine have been durable but others complain of breakage. Can be picked up cheap these days. Cons can't use an alpine boot, least tortionally stiff,.
Dynafit most people who tour a lot and long swear by these as the holy grail. Tortionally stiff, low stack height, lightest weight, great durability. this year upped the ante with a 12 din model.Cons take some getting used to need dynafit compatible boots expensive, not really made for hucking or in bounds use shitty brakes. I broke down and am going the dyna route this season but have not used them yet due to having them on high $$ carbon fibersticks and shitty coverage in Wasangles
Alpine wreckers suck but are an alternitive to buying expensive at sey up