Not drawings and promises — things that have been built, with dates. This is where you see how many rounds it actually takes, and what went wrong along the way. That is the part others tend to leave out.
5 prototypes
The clip that grips the hook bend instead of the point. Two revisions were needed before it stopped popping off in the cold.
The clamp is printed to the tube diameter the boat actually has. The second revision added a soft liner and a lug that stops the socket rotating.
The text is part of the part, not written on it. After eight months in the sea it reads exactly as it did the day it was printed.
Holds hook and line under tension so tying is a two-handed job instead of a three-handed one. So far only tried ashore.
Drawn to the measurements of one specific bulkhead, with a cable channel in the back and vibration damping in the mount.