Duals make it easier to steer from the rail to keep eye on the sea, or conversely to view the shape of the tells and the sail. Agree that a fat wheel
can do the same but it takes up a huge amount of cockpit
space and I think
becomes a safety
issue when moving too and fro in the cockpit
area especially in a hurry - see Bennie First 35 for an example.
Second forward wheel
in a cruising boat doesn't make sense to me unless its a pilot house design, and then you have a whole bunch of other issues we could go into here. But if you want forward control for little investment, buy an autopilot remote
Offset companionways (in cockpit) were the thinking I believe of maximizing space in the design and making for some easier storage
. Unfortunately it is rated lower because of down flooding in a knockdown - whether really proven true or not. I'm more concerned about companionways that have a full opening right down to the floor of the cockpit than I am about offsets.