I agree. I don't see how this thing will possibly hold up. The central connection point for his four main beams (the area with presumably the highest load) appears to be increadibly weak. A thin plate of aluminum (maybe 5/16") connecting the top of all the beams. Of course we can't see what the connections are inside the main hull. But the bolts look like they're on the order of 1/2".

But the fact that the main beams are not solid all the way across the boat (from ama to ama) appears to be the main (and very big) flaw in the design. The beams should be two solid pieces rather than four. And the criss-cross doesn't look like a good design even if it were all welded. One huge point load on the main hull.

Imagine cutting the cross bars on your cat in half, angling them all in toward center, and then splicing them together with some thin sheet metal. The boat would just fold up when it hit a wave (if not before). I suspect that's what will happen to this boat.

sm