Hello, I think this might be of interest to other owners. My 336 was hauled and the below note explains what was found. (Note twas sent to Hunter). Greg-- If you remember, I mentioned that I thought the hole was under water tank. I was wrong. It is under the small piece of teak just at the foot of the bow V-berth. If you image that piece of teak to be a circle, the screw at approx 2 o'clock is the cause. Removing that screw, looking through the screw hole, I can see directly through the hole in the hull. Measuring on the exterior with a tape measure and allowing tape to follow contour of hull, the hole is 16 or 17 inches from water line and approx 75 to 80 inches back from waterline on bow. Hole is about 3/16 of an inch in diamteter. I estimate that tip of screw would normally be about 1.5 inches away from inside of hull. It does seem that the hull does flex there and compressed against the screw. I don't think it happened suddenly. Maybe over time, there was a hit from time to time with the screw working its way deeper and when we were out on 8/24, it made it all the way through. We were on a port tack for a good part of the day in 2 - 4 ft seas. Don't recall any banging of the hull though. All the screws holding all the teak down are 1.5 inches. Is it necessary for them to be this long? This particular screw hangs well below the underlay (or whatever it is called that the teak is screwed into). What are your thoughts and recommendations on this? And should other owners be told about this? Please call me when you have a chance at 781 407-3804 - daytime. thank you,