Bob Gibbons wrote:

However, for a personally owned sailplane, older wooden gliders are no
more difficult to keep in good flying condition than any other
sailplane

given good care. and
proper storage of the sailplane.

LOL. Under those conditions, a sailplane made of matchsticks
and toilet paper would fare just as well. Given good care and
proper storage, one can raise baby Bald Eagles too. Good luck.

Stay away from wooden gliders. You don't know if they've
had "good care" or "proper storage" in the past, and
this may be very hard to determine.

I'm reminded of the Citabrias guys with all the inspection
holes in their wings. It didn't matter if you kept
yours in a super dry hanger its whole life, and never flew it.
The wooden AD meant you had to cut holes in the
wings.

So it doesn't always matter how good YOU traet it either.
Stay away from wood. There's a reason it is uncommon
in current aircraft manufacturing.
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Mark J. Boyd