....... Has anyone tried raising the moisture in wood by storing it in high humid container for a while. .....[/QUOTE]
I seriously doubt it. It might help a little on the surface but I suspect it wont penetrate very deep, at least not for a ling while.
Most of the moisture in living trees or recently cut trees is moisture sucked up the tubes by the tree itself, trying to feed itself. The moisture in the 'tubes' or veins takes a while to dry and the moisture within the cell walls takes even longer to dry. By adding humidity, you are reversing the process and you cant suck the moisture bake into the veins,
I do not speak from actual botanical knowledge, but I did sleep in the Holiday Inn last night. At least it sounds almost logical.
Tony B Retired woodworker, among other things.
"Strive for excellence and settle for completion" Tony B