From our experience with the voids in the hull and water, we found that the laminate had collected some of the water and the voids a bunch. Water standing in the bilge tended to help fill the voids! Found that out when we were hit by a heavy rain with the boat totally stripped. The earlier boats may not have had the bilge sealed which was done because the two sides of the hull were so close together that you cannot get into the area. Pearson poured foam into the void and capped it with a layer of fiberglass. This became the bottom of the bilge. Unfortunately, it was not barrier coated and some of the water standing in the bilge will enter the void, soak the foam and enter the laminate.

We prepped and sealed the bilge to stop the problem. If you follow the manual and drill those holes in the hull, you will likely get water to drain.