In a place with little yearly rainfall, those cracks are not an issue. Get into an area like the Pacific North West where they can have rain every day of the year, and a lot of times meters worth of rain a month, those cracks to turn into a lot of damage. Throw in a few freeze thaw cycles and those cracks become holes. What I'm getting at is it all depends on where your boat is located, and the weather, as to how big of a concern cracking can be.And numerous cracks under the timber railings