[WHOOSH]

I''m surely just scratching the surface but here are a few admittedly generalized answers:

Far less asymetric waterline as the boat heels (since the waterplane of a more balanced hull is more symetrical), requiring less weather helm.

Less tendency to stuff way too much ''stuff'' w-a-y back aft (due to the volume), unless the boat is designed to be loaded in that fashion.

''Living Space'' more centrally located, where it''s more comfortable at sea (vs. if the same functional areas are squished further forward because of that big aft cabin). Thus, the space is where the crew want to spend most of their waking moments, vs. tucked under the cockpit.

With the narrower stern and the lessened tendency to make a cabin back aft, there will also be a lessened tendency to drive freeboard up in order to accommodate that aft cabin.

As discussed in another thread, lessened tendency to put the head of a berth 1/4" from the transom and occasional wave slap.

Narrower stern could, all things considered, offer a more functional cockpit with better protection, better foot bracing, etc.

That ''following sea'' that''s ''pushing along'' the big wide butt may in fact be pushing the boat sideways, skewing the stern more than with a narrower stern simply because there''s more surface area (for both wind & sea).

Jack