Talked with a friend and turns out it was him. He sailed down to Juanas and tore the grommet out of the top of his sail and didn't have time to run back and get his second main. So he sailed back to his place under spin alone. The mast on an HT can take that kind of strain and it isn't like he was pushing it or anything.
Blades doing well. Prelim reports show there are as many F16s there as the next most prevalent boat- the N20. 2 blades rounded the mark ahead of the F17 but Bob got them upwind.