Marker is the first manufacturer to offer a non-tourable binding that can accommodate BOTH alpine and AT boots safely, and it's called the Lord SP (stands for Ski Patrol, who will likely be among the most enthusiastic users). What this means is with the Marker Lord SP Ski Bindings you can use an ISO Touring boot all the time without having to lug around the extra weight of a frame AT binding. Plus you have the best of Marker's downhill tech in the Triple Pivot Elite Toe Piece and Magnesium Part construction. Why hasn't anyone done this sooner?
Marker Lord SP Ski Bindings - B07CHBHM2N