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Join Date: Sep 2005
Location: New Westminster, BC
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Today there are low stretch ropes that work better for halyards than good old dacron yachtbraid.. Sta-set and Sta-set X come to mind.. at a price, mind you.
Halyards at 3/8 are probably OK, the new line is plenty strong. For sheets yachtbraid would be fine, but I'd upsize to 1/2 or so to be easier to hand. Nylon has no place on running rigging.
I don't believe I've seen runners used on a Cal 29.. but again a low stretch line would be better.
Your anchor setup might benefit from a chain up-size, and another hundred feet of line rode wouldn't hurt, depending on your common anchoring situation.
I'd be very surprised if your standing rigging is actually 3/8" That's pretty heavy duty for a boat that size. Best bet here is to take/send the existing bits to a rigger for replacement. A member here has provided good service to others, so maybe send Knothead a PM.
Any marine retailer will have the line you need.. if you have several in your area just price compare..
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)