Keith, I like your answer and it follows what I've noticed in natural settings. For the past four years I've been living and traveling the US in a 33' RV. However, I tend to winter in SE Arizona for the sunshine and quail hunting. I've noticed how, after a month or two in Sierra Vista, the wood on my guns begins to shrink slightly and parts become loose. For example I have an old percussion SXS that I made a wood ramrod for and damned if the copper end, which I'd glued on with epoxy, didn't almost fall off one day. A month or two after I'd left Arizona and resettled in Montana it was tight again. The dry air is damned hard on human skin as well.
Steve
