Thanks from the insight, the boat is 1987, 222 Osprey, and there is a few areas flexing when pushed in on the sides of the hull. The areas are aft of helm or “Mid to Stern” section of the hull.? It appears as a couple spots of delimitation maybe the size of a diner plate…. That’s why I’m trying to figure out what I’m dealing with, possibly correct the problem. I’ll try to post a video or at least some photos on the issue.