: I think the general consensus is that it is important to make sure
: there are no pin holes in the inside layup, but there is no need
: to completely fill the weave.
Another cool way to make sure the inside is sealed is to apply a coat of white paint. It seals the surface, it's less hassle than epoxy and when the boat is finished, it makes it easier to see your gear in the hatches. I've seen this done on a few boats and it's very effective.