I've been thinking about this a little bit and trying to come up with a fuse geometry that would work. I think you would want a strap where a load applied vertically or forward (as you would get from a hard stuff) is not going to release, but a torsional load would blow the fuse.

It's also tough because the direction of the torsion makes a difference. I've been pivoted forward into the hull before when in the straps, but I wouldn't want that to release me necessarily because the stopping of my forward motion prevented a pitch and we kept truckin'.

I also think it would be important to be able to set the "breakaway" load on the strap as a function of crew size/weight.

I'm going to keep thinking about it, maybe try to build something.