dr5e14w,
I saw a guy doing that with an A-Cat on a youtube video once, so I tried it. Maybe my batten pocket end caps are too small or something (they have very rounded edges,) but my extension doesn't want to stay in place when I try that.
I went out today and when I tipped my boat to raise my sail, the leach got wet. While I was sailing, the leach was drying and dropping bits of sand and shell on me. It was a great day though, 10 mph wind and flat seas. I got in some good spinnaker runs and was trapped out on when I was close hauled.
Dropping the main at the end of the day was textbook easy.