Found a space heater doing that to me last winter.

What makes you think your three point setup is actually safer? Single lines have been the standard for years because they work fine with modern rigging and proper operator skill. That Chicago accident sounds like a training issue, not a gear problem. You might be adding complexity where it isn't needed and slowing your whole crew down for a fear that's out of date.

Sounds like they treated it with a wish and a prayer instead of actual chemicals. My old deck boards looked straighter after ten years than that new stuff.