This is a friends 37.5. They noticed the deck lifting on the starboard side and this crack. It was repaired from a hit in that area (well-raced boat). Anyhow, from my 40.5 experience, it seems that's the inner liner that is cracked. but I think it's bonded to the deck in that area. Certainly, the traveler is pulling up near there too. Repair guy (tops) is on the way to look at it. Any thoughts?