Originally Posted by David Hecht
OK, now I am thinking about getting a pair that can be uses with skins and Touring bindings...
I know I just threw out a million rambling questions, but thanks for any advise or direction on where to look for more info
You're beginning to sound like you have ADHD, to be exact. Look, if you're (now) serious, first search, here or at other sites like Wildsnow or TGR, to get good info on AT setups. Search functions are easy and indicate you're willing to do some of the work yourself. Educate yourself before you keep windmilling back with new sets of questions. Try to narrow down your focus: Do you mean actual touring, as in multi-day treks out of bounds? Camping? Huts? Or are you getting excited about Chilean sites that show sidebounds and some hiking and skinning that will end up back at the base? Have you ever done any of this before? Do you have AT boots? Do you have a beacon and backcountry training? If you haven't, learning to skin on a super vacation may not be the prime way to do things. Maybe just think about hiking sidebounds, renting some touring gear and joining a group if you really want to learn.
Keep in mind that AT bindings also mean different boots, unless you plan to use your alpine's, which will make skinning somewhere between highly painful and just irrelevant. OTOH, a dedicated touring setup (which will NOT involve wide heavy alpine skis, and especially not tail rockers like the S7) will be unhappy on hardpacked or choopy groomed, and South America is not immune to ice or or crust. Plenty of wide-ish alpine skis (meaning 105-115) lend themselves to crossover bindings like the Duke, and will be a lot nicer in most sidebounds conditions than dedicated touring skis, but the tradeoff is weight. Which (again) makes a difference when you skin or hike any distance.
So you might begin all this again by asking yourself what your priorities are, and what you can give up. Be realistic about what you know, what you don't know, and what you will actually be likely to encounter. Eg, WHY are you now thinking of going AT? What does it do for you that conventional bindings and boots won't? And of all the skis you've just named or had named, how many of them actually fit your priorities?