I made sure to walk it first as there some boulders were starting to peek through, but we had a good 10 or 15' between his spinner and my right wing tip, and 5' clearance from the rocks to my left ski. As the mountain dropped away, the liftoff was automatic almost, and something I do a lot of. The only difference is NOT with, along with all my wintertime emergency gear, a passenger, but the plane stepped up to the plate and handled it just fine, made me proud of it!
Oh, maybe you mean Jonas's launch? I agree, you can see, right at 19:31, when he pulled the tail down way before lift off speed, like he was either trying to get airborne before the drop off or maybe was changing his mind about the entire matter. He should have just kept it up,that steep of a slope will get you airborne every time but trying to liftoff prior to it is the worst thing to do. I used to foot launch hang gliders off sheer cliffs, looked scary but were actually quite safe and easy, just have to keep the nose down, same thing here. The big deal here of course, was the lack of skis, that made it all a bit sketchy for sure.