Join Date: Oct 2004
Location: Narragansett Bay
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From a non-expert''s point of view, if the bottom has developed blisters within your five years of ownership, it is possible that water intrusion within the laminate layers could add excessive weight. This, of course, would result in a higher waterline.
Otherwise, with only the bow & stern dropping and a noticible increase in hull curvature, some deformation may be occurring. If you suspect this may be the case, a marine surveyor or naval architect may provide more insight.