Everyone who has a keel protector on their boat should check them to make sure they're not separating from the hull. Over the weekend I decided to replace mine because it was separating, in two places. Where it separated, water had entered and was trapped between the protector and the hull, which caused blisters to form where the water was trapped. I had no idea water was pooled in the two places. I spent most of the weekend repairing the blisters.
I just noticed another post was just posted on this subject