Every boat requires some if not quite a few "hard points" where
something bolts through.  Obviously the core must be something other
than foam here, and more layers of glass must be used to spread the load
over a large area.   A dense wood would work well, but would present rod
opportunities.   What's the best material to replace foam where there is
compression load combined with jerking and tugging, such as where an
anchor or drogue, or even dock lines must connect?

        H.W.