Stan, I appreciate your input. I am leaking through the seam between the inner cb trunk slot wall and the cockpit sole drain. Which sounds like that's where you were leaking too. I am not sure that Connie's problem was very different, unless he was actually leaking through a hole in the slot wall itself, rather than the seam. This seems less likely, especially given Jerry M's testimony that the seam was a chronic trouble spot in the early M15s. (Connie--I sent an earlier message asking for your clarification here.) Stan, could you please clarify -- where did you apply the layers of fiberglass/epoxy -- to the outside of the trunk liner (inside the cabin under the cockpit)? Or was it on the inside of the centerboard slot (from underneath the boat)? -- Steve McClellan M15 #152 Chicago Area