I have a customer with a problem we rarely see here in Minnesota. He lives in Belize most of the time and he recently brought in his rather nice Martin that had suffered severely from over humidification. All the back braces were loose, many of the top braces were loose, etc etc. We can dry it out and repair the damage, but then it goes back to Belize (don't even ask how he came to my shop in Minneapolis!!). He has asked that we finish the inside of the body to reduce the absorption of moisture. I am not sure I want to do this and not at all sure if it will really help. Any thoughts on this remedy? Any other thoughts on how to keep this guitar from swelling up like a baloon as soon as it goes back?