but I would use a breast collar with attached traces, put a backstrap and a crouper on my saddle, add trace carriers and then have my skier attach his rope. Like the roller blade-er in the german or dutch video where the horse and rider are jumping.
The skiers in this video have the rope attached to the horn.
Cool! Ski joring with a bit of ski-jousting thrown in!
I went ski-joring once, in the 70s, much more gently. Ton of fun. We kind of borrowed a horse that was, at the time, long listed for the 3-day team. Can't divulge, Jack LeGoff would come back from the grave and nail us. But we had the owner's sister's permission!
Every winter my son wants to give it a try, but he's always doing something else when the snow is primo at the barn.