Hmm, I was thinking there was much too much bouncing - I'd have thought much more energy absorbed in plastic collision - these look almost purely elastic. It also seems from videos etc that the strength of wing primary structures (as opposed to the ribs and skin) is under-represented.

Simply - the two objects should more often end the collision at nearly the same speed and tangled, rather than bouncing off each other as much.

There was at least one FE2b (IIRC - can't recall exact model) that collided with a barrage balloon apron over London, the cable sliced through the wing to the spar, where the structure held, and the aircraft came to an abrupt halt, before sliding down the cable to the ground. Both crew survived.

I cannot see that being possible with this collision model - it looks like wings fall off at the slightest excuse at the moment.