I used the same waxed polyester line from West Marine. It was made for sail repairs, but worked great for my SOF. It looks like waxed dental floss, only much heavier weight. It's also the material that Morris calls for in his book.

Mark

: I just bought some last night from "West Marine" it was 40 lb test
: and 1/8" wide appx. $9.00 for the roll, I don't think it was quite as
: good a deal as the above post but the local store carried it here in
: Seattle.