Capt Lar, we just sold our J/30 after a happy 9 year relationship. I believe the moisture problem refered to results from the poor design or poor installation
of the engine exhaust
in the transom - the builder
just drilled a hole thru the hull
and installed the pipe. It was sealed, but after 20 years, there wasn't much sealant
leaked into the core
around the exhaust
pipe, and we had to replace the core
in the lower half of the transom and about 2 ft underneath as well. We were not aware of this issue until a surveyor
discovered it on our boat, since them I have heard of it on a number of J29's and J/30's, since the J/35 is of the same vintage I expect it might be a problem there as well.
The J/Boats have cored hulls, so any of them that are not very well maintained may be subject to water
in the core. Of course that applies to most boats, but those with cored hulls havce more core to worrry about.
Having said that we would certainly buy another J with no hesitation, subject to a thorough survey