A couple of years ago, I watched a friend of mine carrying his wife’s boat down to the shore. A new kayaker taking a lesson from us carried the bow. Unfortunately, the worn-out rope attaching the kayak’s end toggle to the boat broke sending the bow of the $3200 fiberglass Valley Pintail to the asphalt. It hit with a crunch. He’s divorced now. I don’t know if it had anything to do with the kayak. Kayakers use end toggles (handles) for lots of things, but, arguably, the most important function is as a handle that allows the boat to spin freely if you have to swim your boat through the…