We bring 300-millimeter-wide bands of the stuff. After the J2 split in half it was up and flying 24 hours later with a massive band across the split. We took some 5200, wiped it on the sail, stuck the two pieces as close together as possible, took a band of 3Di across the 5200, let it sit there for two hours, and then, 12 hours later, put it through the sewing machine to tack down the edges (so patch doesn’t peel away). After that, we carried it for four days, upwind in 27-knots true and flying off waves. It’s unbelievable, really.