I'd been using this brailing line setup for a few years on my own Ulua so when Dennis Bullen asked me to make a sail, by cutting down an old genoa jib, I installed the same system. Grommets are placed in an arc equidistant from the tack of the sail. The brailing line is fed in and out of the grommets and is tied off at the boom. I had had problems with chafe on the old system especially when using synthetic line which can actually burn/wear holes in the sail. The radial system does a better job of controlling the loose parts of the sail when partially brailed, and is less likely to chafe the sail.
Dennis is pleased with his new sail which at 100 SqFt is better suited to his 24' stretched Ulua.