The content of this page is not intended to be authoritative or complete. It's just a holding tank for thoughts I have and things I have encountered. I am not a certified marine surveyor, nor should this list be used as a substitute for a valued professional opinion. I do believe it could be a very useful indicator of what boats are worth investing in a survey and which boats may be passed by. It could also be useful to someone who already owns a CS27 and would like some ideas on how to improve their fine yacht.
The solution is to make sure all the deck holes are properly potted, and to add a nice backing plate to the stanchion bases. Ideally while you are at it, add plates to all of the stanchion bases. But at a minimum make sure you add them to the gate stanchions.
I made mine from structural pre-fab 1/4" fiberglass sheets bedded in epoxy thickened with colloidal silica. I think 1/4" aluminum would be better, but all I could find at convenient locations was 1/8" stock, so I used fiberglass instead. It was a beast to cut that stuff, but I guess that's a good sign of its strength.
Load up a syringe with epoxy thickened just enough not to sag much. That means you can suck it into the syringe, but just barely. Now grease or wax the chainplates and loosely install them with screws. Now, using the syringe, inject the thickened epoxy up into the gap from the cabin interior. You should be filling approximately 1/8" of gap through the 1" deep deck.
The Don Casey cast-island method will not work with the CS standard chainplates, unfortunately, so make sure you pot the hole well, and watch the interior for leaks to catch them early. Alternatiely, re-bed those plates eavery few years proactively.