Thanks for the info, Sailquik.
As for wind, there was so little today that the 12 or so sailors at Green Point were out on their 4.5 and 4.7 sails, affixed to their wave boards. They practiced their wobble-outs, wobble-ins and occasionally carried out a tail-sinking gybe. I even saw one sailor throw his sail down toward the water in disgust, only for it to be hit with a gust of wind such that it flew back up into his hands! Talk about lucky and that inadvertent move might be copied by other freestyle sailors who saw it. If it was me, I'd give that move a name and patent it.

Thankfully, there MIGHT be wind tomorrow.