I have an annoying seawater leak on my 2001 B331. it only occurs when hard pressed to windward. This results in a wet fore cabin with wet cushions along their outside edge and water pooling in the moulding beneath the v berth infill. The ingress appears to be entering the cabin via the wooden windless cover. Try as a may I can locate the source of the leak. It’s not from the windless switches or anything I can see on the foredeck. I wonder if anyone had experienced this? Or has any advise.