Mr. Duff is correct in what he said about the connection to the chain. That connection should not get any where near the turning blocks or the quadrant. On the lashing end, I have found in the past on many number of race boats that no matter how tight you get the lashing. It will all ways loosen up over time, do to the pressure on the system. One way I've found to fix this is to not use a low stretch line like spectra for the lashing. Instead I would use a more stretchy material like 3\16" or 1\4" braided nylon. As long as you have 8 to 10 wraps on the lashing it is PLENTY strong enough. This will keep the constant pressure needed on the vectran to keep it on the quadrant. Also make sure that the rudder stop strop is still the right length. It can,and will grow over time. I think the best way to eliminate the chafe on the vectran is to replace it with 7x19 wire. It will do the same job,but last a lot longer. Hope this helps.
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