C&C 29.7: bulkhead splitting
We are considering to buy a C&C29 1977. She is in perfect condition other than concavities/invaginations along the bulheads bilaterally from the outside of the hull. Examination inside the boat demonstrated no evidence of bulkhead splitting. However, I wonder if the splitting is underway but has not yet manifested itself, or we may have missed it. It looks like the stays were at excessive tension, either due to racing or overtightning. Is it possible to repare if splitting is indeed present? What is the way to diagnose splitting definitively?