Ah, Nick…as Bill Putnam mentioned decades ago in an article on Avalanche Safety he wrote for AMC’s Appalachia that “ saturation slides can be fun to ride, but they don’t steer well! “
I found that out one day in a “ seated glissade” on the slabs below Eagle cliff. Suddenly I discovered that I was riding on moving snow and no longer “ connected” ( with my ice axe) to the adhered snow beneath. Ah, fortunately things slowed down as the angle diminished and “ we” entered the trees.
Then there was the distinctly less fun saturation slide that poured over the top of a minor serac, pouring 25% over me and 75% just a little beyond me….where the leader of the second rope of our party had just arrived. I reached down, grabbed the hood of his parka and held on for dear life…one arm holding my axe dug in to the hilt, one arm holding his parka.
I‘m writing this today, so the three of us ( the leader of rope 2, me, and my leader [ 150 ft above with nothing in] ) didn’t wind up in the bergshrund ( the 4th, maybe too ) but it was one scary 30-45 seconds!