We had our 1993 370 Express checked with a moisture meter when it was a new boat and the stingers showed some moisture which bothered me a great deal at the time. When we sold the boat 11 years later the stringers still showed about the same level of moisture. I watched the surveyor bang away at the hull with his little ballpeen hammer. No thuds. All pings. Clean bill of health for the old girl, structure wise. Never did fix the deck leaks, however, and eventually gave up trying.