I love this one, but the strings get used up so unevenly that I ran out at only about half length. Has anyone figured out a good estimate for how long each string needs to be? If my count is right, the first 2 strings are each used for 20 knots per repeat, the second 2 strings for 13 knots per repeat, the next 6 strings for 9 knots per repeat, and the last 2 for 6 knots per repeat. How long was your longest string?