A couple of weeks ago, we had a very light wind for our Wednesday evening racing in Torbay, so I thought it would be a good opportunity to try out the JC strap. I rigged it as shown in the guide. When I put the boat in the water of the trolley it promptly capsized. I righted it several times, but each time it 'fell over' again. It seemed as if the JC strap holding the boom out to the side was unbalancing it. I hadn't experienced this before, so eventually I disconnected the JC strap and got away. Didn't fancy lying around on the foredeck to try and rig it on the water, so left it loose. I guess it might be possible to counter the strap with the mainsheet at launching time, but this would require some coordination!

Anyone else had any experience with the JC strap?