Hull speed

[HJS]

In this forum often is written about hull-speed relative to waterline length.
It often ends up in a confusing mess of arguments.

Should we relate to something more relevant and yet easily accessible?

When I did some investigations on two rowing boats that would go in the critical so-called "hull-speed", I found that the resistance curve changed drastically, if I had a transom. The larger width of the stern revised the longitudinal metacentric height very considerably.
One advantage of studying the longitudinal metacentric height is that we also include the boat's shape above the waterline.

Has anyone studied how the longitudinal metacentric height is proportional to the resistance in speeds between FnL 0.3 and 0.5?

js