Hull Design Shape Differences

[Pat Ross]

After reading several posts on different engine size choices I am wondering if there is a hull design shape difference between the 3 basic models, 26, 8M and 28. I recognize there is a diffence in beam width on the main hull between the Mark 1, 2, 3 & 8M. Obvioulsy there are some LOA differences between these designs and the 28. But has anyone looked at the hull bottoms to see how they compare to each other? Is the 28 an extension and of the 8M for example? Obviously there are many other differences and upgrades on the 28 but in this discussion I would like to stick to "design main hull shape differences as well as those that might apply to the amas".

Pat