My boat, hull #46, did not have the outboard post connect from the
hull to the cockpit sole, and consequently the aft bulkhead was
separating from the deck as Jason described. I built an A-frame
directly underneath the aft bulkhead out of teak and bolted it to the
bulkhead (it simply rests on the hull; not glassed down or anything).
Consequently, the load is spread over the two parts of the A-frame,
plus I did put pads at the bottom of the A-frame to spread the load
further. This has resulted in a very stiff cockpit, and the extra
weight was minimal.
If you have big boys jumping around in the cockpit this would
transfer directly through the outboard post to the hull with little
diffusion, so it seems reasonable this could dented the hull even
without delam/water intrusion. You will probably want to build an
A-frame (I can send you a drawing), or sail with 4 cute girls instead
of 6 big guys.
With regard to moving the outboard mount forward, it's not clear this
would be class-legal, as the rules require the outboard to be secured
to the post, and moving it forward would concentrate the weight
further towards the center of the boat. I hate crawling back there to
secure the outboard as much as anyone, but we should bring this up as
a rules issue before folks in the bay start moving their outboard
post.