I've owned a 1997 Hunter Legend 240 for the last 10 years, it had one previous owner. It has a bead of silicone sealant in the gap between the rear section of the hull (transom / stern locker etc) and the main hull, inside the cockpit and the outside of the transom. I'm fairly sure the rear section of the boat is an integral part of the hull so not sure if this sealant is necessary? Advice please.