Hey DJ - great looking rig, and great angle -- good stuff.
I've been laid up for a bit, and while I was, I got an iPhone game called "Bridge Construction Kit" .. fun game that teaches (indirectly) about tensive and compressive forces, and this kind of break happens all the time when you're trying to build a bridge out of wood! lol.

A counterweight might help reduce some of the load on the 3rd leg?