I have an older H16. I have noticed the hulls, especially the port side compressing around the front posts when rigged and sailing. One hull has a porthole cut about 24" behind the post. Looking inside the base holding the post appears to be loose and the post must be riding up and down inside the base. Any idea's on repairing this?

Go to www.catsail.com website and email them there as they have some great articles on how to fix problems like this.