by GreenLake » Wed Aug 04, 2010 12:45 am
For those setups where the mainsheet is led along the boom to the back, the place the block for the mainsheet is fixed is not the "fin" as you call it, but a screw placed at the back face of the boom. That screw holds a strap which is free to swivel, not matter how much you turn the boom.
The screw needs to have locking nuts (inside the boom - so you may have to take your end cap casting off). It's a beefy one on my boat, 3/8th or perhaps even 1/2" (has been a while since I needed to look at it).
Having said all that, I've never felt like trying out the rolling reef (sail shape is probably going to be terrible). I bit the bullet and got a set of reef points added to my main.
I had to install a few bits of hardware items (cheekblocks, cleats, etc.) but now have single line reefing. The reef line pulls the new foot of the reefed sail very flat, so sail shape does not suffer dramaticall.
If you sail in a place where very high winds can catch you, you might get two sets of reef points.
~ green ~ lake ~ ~