In July of 2010, I hauled TERN to give the keel, rudder and rudder shaft, and associated fasteners and hardware a thorough inspection. I also wanted to replace the transducer for the depth sounder as I replaced a rather old-school (and power-hungry) one with a new Garmin unit. While I was at it I applied two (and in some places three) coats of 66% copper antifouling, and re-designed the existing cockpit drain (which had always seemed vulnerable) such that it was more robust and allowed greater use of the large storage area under the cockpit sole.
This clever design allows the owner to remove the keel from the boat without removing any fasteners which would let water in. One intent of the design was to be able to put the boat (with keel removed) and keel on a flatbed trailer, negating the need for an expensive boat trailer.
The man I bought TERN from removed all the keel components and sandblasted, primed and epoxy-coated the plate, lead, and angle. He also built a new rudder. All hardware looked very good and trustworthy upon my inspection.