Hello Frank and David
Surprised you have not already received replies.
We owned 31/27 (Muffin)for a couple of years and for some of that time she was was on a drying mooring and I believe she still is .
We experienced no problems with the keel, the daggerboard design(all Parkers are the same in this respect) will not allow any water or mud into the boat unlike some of the competition.
Only problem we have with water was ingress around the mast and through the mast as it is a keel stepped mast.
Around the mast we solved with self vulcanising tape for a gasket, then we were left with the water coming down inside the mast from the halyard openings. This we solved by creating a plug of builders polyurethan foam inside the mast just up to the lowest halyard outlet, this made sure rain coming down the mast ran out of the halyard outlet rather than down into the toilet compartment.
When we bought her it was an impulse as she was very untidy internally as she had been left wet for months and all the headlnings had fallen, so we need a project.
For purchasing I would check on engine cold starting and keel mechanism , both electric and manual modes. Other than that probably better to contact some of the owners who have had the 31's a lot longer than I did
Hope this is some help.
Jan
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