Join Date: Sep 2010
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I sail a cutter rig myself and I didn't like the self tacking set up and went to a fully free staysail. I have 4 lever locks that I run my sheets through. I can use my winch(s) to work either sheet on both sides, lock it in place and then clear the winch of the tail and then work the other. I admit that my boat is much smaller(26') than your 39 but they do make some hefty lever locks that would handle your sheet loads and you can aways back them up with cleats so that your load on the lock would only be momentary. I can see the situation where the loads could quite large but I am probably reduced down by then so I'm not loading them then.
Positioning the locks was a bit of a head scratcher till I thought of a sliding turning block setup similar to that on the jib sheets on Hobie Cats. This is also similar to many main sheet leads on larger boats. Remember to keep the lead to your wench fair to the wench take up. It was a tight fit up on my top but it works. I know, more lines, more blocks; money, money, money. Maybe that's why I sail small.