i have figured out that the crack on my hull is the result of lack of support from the trailer. it was fine until i moved the rig forward on the trailer for more support under the transom. it's so small i can't even get a pin head into it. im in the process of filling it and painting it. it's an easy fix. what caused this? ive talked to many people about this and it seems, im lacking bunk support. i have only 2 bunks, whereas others have 4 bunks or 2 bunks and keel rollers. i was just wondering what everyone else has. im putting keel rollers on right now and im thinking about adding 2 extra bunks. what do you think? overkill? anyhow whats supporting your hull??? thanks.