I'm seeing LOTS of great ideas on this thread.
After a recent week on the Nekton Pilot, I'd say that a few more grab rails, more space between tanks to get into your kit without elbowing your neighbor, and two really easy and deep dive ladders with well-spaced steps would be my first wishes.
The other thing would be to have the after-dive snacks available outdoors. You had to dry off to go in to get fruit or a brownie or whatever. I would have appreciated their placing them on a tray outside the salon.
After a recent week on the Nekton Pilot, I'd say that a few more grab rails, more space between tanks to get into your kit without elbowing your neighbor, and two really easy and deep dive ladders with well-spaced steps would be my first wishes.
The other thing would be to have the after-dive snacks available outdoors. You had to dry off to go in to get fruit or a brownie or whatever. I would have appreciated their placing them on a tray outside the salon.