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Join Date: Sep 2005
Location: New Westminster, BC
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Assuming you are attaching the tack of the sail to a pin or a hook on the gooseneck or boom, beyond that most similar setups have a tackle or strop to keep the sliding gooseneck in place against the halyard tension. This allows you to set the gooseneck height, and can act as a cunningham of sorts itself.
Alternatively you could get a couple of track stops that fit your track and locate the gooseneck that way - but it will be less adjustable.(or replace one or two of the track bolts with ones that stand proud - does the same thing more permanently)
I'd probably fix the gooseneck in an appropriate position with stops, and rig a conventional sly pig (cunning ham!?
btw - the Shark was our first sailboat - great starter, but we outgrew it the first year.
1984 Fast/Nicholson 345 "FastForward"
".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)