I was looking at my 84 Bristol yesterday, and there are a couple of spots with gelcoat cracks. They are all at points where stress is concentrated when crew move around.
A few cracks on the deck where you first step when boarding the boat. A few more on the corner by the lazarette when you would step as you enter the cockpit. A couple of spots at the rear, adjacent to the cleats. (can see those causing some stress)
I was alarmed at the time, now I feel better