[bwindrope]

Jim,
I'm fairly certain that what Brion is referring to is just having stainless rings slightly larger than your reef cringles sewn onto either side of the sail with webbing. You have to do it yourself, or have it done. Most chandleries will have the rings, and even easier to get a beefy webbing from some marine or rock climbing store.

Many mainsails, including my new North sail, come with these already installed. The rings are sewn pretty close to the sail, with only enough give on either side for the ring to lay flat against the sail when pulled down.

Hope this helps.