Hard to say? Probably the last two. Don't know for sure that the wishbone is what caused the accident. Just suddenly had death wobble at about 55mph and a second or to later the vehicle was going hard to the left and into the rail. I was braking hard so I probably hit it at about 45mph. The wishbone had about a hundred miles of driving on it with no problems up until then.
After the accident, everything was so mangled that attached to the front housing, that it's hard to tell what broke loose first.
But it was a pretty radical design and not something I'll attempt again on a street driven rig. Or on anything for that matter!