Ed: Your vessel does look sharp. I'll give a good reason for having the longer tracks so the slider never goes to the end. When I have had the tracks pull through the deck, the slider was at the end of the run. The deck support is concentrated when the slider is at the end, whereas when the track goes further, there is more support.

After I raised the issue of the bent track, it occurred to me that you don't have lifelines and stanchions. That does change things. The stanchions would have to be inside the slider, I guess.