2 cents - common sense
The rocket scientist next door, oops, next slip over, told me my cable system wouldn't work. So did the know-it-all at the end of the dock, after all, he had been there over 25 years (our season is 6 months) and he only had a problem once. So what did I do to merit this attention?I replaced my 80% of each dock line with cable. 1/4" plastic coated, with three U-clamps on each end, with locking nuts. There are thimbles on each end. After the cables, the lines start. 5/8" three twist lines.And I cross the lines, From right rear of the boat to left cleat on the dock, and from left rear of the boat to right cleat on the dock. We dock med style, so at the bow there are two poles, with blocks on each. Lines run from the bow of the boat, through blocks on the poles to cleats on the dock. Most of those lines are also cable.4 years ago my boat got real beat up using only nylon lines. Then I fiured out the cable method. Not a problem since. There is no chafe to worry about because the cables don't stretch or give. There is no sawing of the boat in half as some people claim would happen. The naysayers were all wrong. In fact, now everyone is going to this system, and if they don't do cables, they at least cross the lines at the aft end (the part of the boat closest to the docks). And I don't put fenders out. They would get caught in the lines and the boat never touches the lines, so why have them out? We dock stern in, which means you could tie up this way, but it would work for any other way to I suppose. Oh yeah, the little nylon line I do have gives me just the right amount of stretch and play so the boat doesn't jerk when waves come through, or the wind does its thing. Only not as much as 100% nylon lines did.