Guess this wasn't the first time this happend to a 21SC.
Catman wrote in May or June 2003:
Last year I helped a guy move his H21sc after it had taken a direct hit to the comptip. His boat was on a lift behind his house on the water. The result of the hit was the comptip exploded in half and hung by a thread. The strike had traveled down the mast and over the front beam to the port side blowing a hole in the deck box big enough to put your hand through.
Ouch! That "corrosion damage" can get pretty bad down in Florida!
George