mystery3Sounds like a good setup!
I think I'm overthinking things though.
I can just ride the shifts and attack 13s inbounds and swap toes if I have a chance to go touring. That should work right? I assume I would need to make some adjustments to the shifts when switching over to tech soles but that's not a big deal.
Easiest thing to do is just only get bindings that are classed as MNC, Multi Norm Certified. The shift is included in that, so you can ski the shift even with a standard alpine boot sole, although obviously wouldnt be able to tour it without pin inserts. Alpine bindings classed as MNC include any Marker bindings usinjg the ID sole and various salomon bindings such as Warden or STH, so there's plenty of good options. And the majority of the high flex freeride/touring hybrid boots will work no problem in any of those, like MTN Lab, Hawx Ultra XTD, Cochise, Head Kore, Ascendant etc etc. One exception would be the new Hoji boot from dynafit because it doesnt have any lugs at the toe which you'd need to ski the shift in Alpine mode.
I'm picking up a MTN Lab/Shift combo for next season which I'm pretty stoked for. Dunno what ski I'll be running them with yet though