Re: Cal 28 Vs. Catalina 27 livaboard
One upgrade I did on my C27 was to replace the old cast-aluminum spreader brackets, as one had cracked where it was bolted to the mast. The old ones are a dull gray, similar to the end-boom fittings, and sort of triangular in shape. The new ones are bright SS, much larger, and rectangular; you can't confuse them, even from the deck.
A lot of C27 owners complain about rot in the bulkheads where the chainplates are attached. I don't have this problem on my boat. However, I do have the old-style eyebolts for the lower shroud chainplates, and one is showing signs of corrosion. Ideally these would be replaced with larger eyebolts or U-bolts (a job I need to do on mine).
1972 Catalina 27