I have a 1984 Hunter 27. In preparing to paint the bottom I noticed this crack starting at the leading edge of the keel where it attaches to the hull. It extends about 8 in. The picture of the port side is what both sides looked like before I started probing with a screwdriver. The picture of the starboard side is what I ended up with after I picked away some of the flaking paint and/or caulk. What is the best way to go about repairing
this.