I really do t have much of a concern as I'm not really seeing much of an issue.. the one issue I'm having is in the back area (not to sure proper term) the calk keeps breaking so if I get a wave from the back side and it splashes in that area I end up getting water leaking down into the boat... easy bilge fix but no matter how much I call the hell outta that seem it still finds its way in... That's what made me worry