So I bought a new Laser Clew Sleeve and used it once before in about 20-25 mph winds when a front came through and had no issues while sailing. It was not as easy to put the hook on my sail as I hoped but it did work. Well to get ready for the new Wednesday night sailing season I bought a new Intensity Radial sail and upgraded my line attached to the clew sleeve to a slightly larger diameter. Last night I had lots of issues trying to get that hook on the Intensity Radial sail. It turns out that the ring is a little bit bigger than my Laser Radial sail. Well I finally got out and started sailing in about 15 mph and the hook seemed to be holding. I started doing screaming reaches with another Laser sailor and did about three long reaches. The last reach I released the outhaul to get more power. We started going upwind to get some downwind sailing in and thats when the hook released. I was fullying hiked out and almost ended up in the water. Well my husband helped me get the hook back on for the sail back to shore which I almost made it before my sail flogged and the hook came off again. I've installed the hook according to the instructions and with help from this forum. Has anyone else have troubles with the clew sleeve releasing under sail? According to the clew sleeve advertisement it is design to not allow unwanted release of the sail while allowing quick release during rigging and derigging. Maybe it is the Intensity sail, is there anyone out there successfully using the clew sleeve with an Intensity sail? I've heard that some people had trouble with the clew sleeve at a Master's event in Jensen Beach, FL recently and that could have been with a Laser sail. I would like to get this clew sleeve & hook to work but my husband doesn't think it will.