Slack is relative
Hello,
I'll just add that a properly-tuned boat more or less duplicates, at dockside, the loads it sees under way. So if you tune it right, you won't be adding significantly to loads on the hull, just making them constant. Slack rigging, all to frequently-seen in traditional vessels, is most often a result of a desire to avoid putting excessive strain on what is perceived as a fragile structure. The unintended result is that the slack shrouds shock-load the hull and fittings, doing far more damage than too-tight rigging might have.
If this boat can't keep the rigging tight (see Ian's letter), tuning isn't the problem; the hull is.
Fair leads,
Brion Toss
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