In reply to Sammo:
It's a huge topic & one that loads of people are discussing as the AT gear gets lighter but fails on the K&G, tele gets heavy like AT, but not quite what most people are after unless tele nuts (I like tele turns at the end of a day down a nice red run), X-country as most people know it won't cope...however the older 75mm system & suitable new x-country skis will do it, so the gear is out there (just) & it is evolving it fill these new void in the market.
NNN-BC will cope, but you have to get the appropriate ski, & really to execute a good turn on steep requires a lot of skill & using the binding (not the boot) & not what you want when tired!! & that video is very good, he has excellent technique!
The Fischer S-bounds look ok but could trap you in their skin system, so the widest non-skin but with a "waxless" crown base by Fischer is what I'd go for. Bindings? Huge choice of 75mm. You really need for front flex, so as a plastic T4 boot (optimal choice) how about a basic none cable? Best for K&G, yet will still beat the pants of a NNN-BC set-up.
Telemark bindings eg cables
http://www.telemark-pyrenees.com/en/all/c-telemarkbindings/f/?page=1
Nordic
http://www.telemark-pyrenees.com/en/all/c-nordictouringbindings/f/
TBO they list some of the same cable & non cable in both categories!
Or how about a set with the removable cables, so you can get more heel drive for the descent.
TBO I have done a recent tour to Tolmount at Glenshee from the ski area car park. so 12 miles total & a nice red run descent at the end of the day down the Glas Maol ski run. Now on my set up which is heavy duty (7tm power tour, Ski Trab Freeride, ScarpaT2 boots, BD nylon skins) it coped no problem. However I feel it is too heavy & cumbersome for the plateau K&G, I did K&G it with technique, but my NNN-BC set up would be better, but a no go on the red run descent!
I got my kit 6yrs ago & the newer Fischer skis, T4 boots, & a set of simpler bindings would do me better for that type of tour. Crown base is better for the undulating plateau, boots have less cuff, so both better for K&G, but still stiff enough for red run with a bit of care.
Got me thinking now bugger!!
P.S. Petzl tele toe bail for their crampons,
https://www.elitemountainsupplies.co.uk/product/447_petzl-telemark-toe-bail...