I have a '96 440 and after four months on the hard in winter storage I just noticed what look like stress cracks on the foward portion of the underside of the hull and they are moving towards the rear.Also spider cracks around through hulls. Mositure meter reads 24% below water line and 3% above. The boat was surveyed a year ago. when the boat was hauled for the winter they wern't there. Any idea?