(Photo Copyright 2003 Brian Gilbert) Richard- Brian Gilbert did a nice rebuild of a MacGregor 22 swing keel, as described on his website www.sailingsmall.com and detailed in his CD ROM, which documents with lots of photos the restoration of that boat. His recommendation to me was stay away from polyester, as it shrinks too much and can pull away from the steel. Instead, use Raka brand epoxy (www.raka.com), much cheaper than WestSystems, and good quality. I decided to abandon restoration of my MacGregor swing keel and get a Catalina with a cast iron keel instead. I will gladly help you out if you want more details...email me at greenpastures2304@yahoo.com. good luck!Tom