A while back Eric and I went to pick up a DS he had bought. The man was working on a giant slab of walnut putting in some butterfly keys. It was a desk top sent to him from back east. We are here in the desert. A substantial change in humidity and temperature. While he had done an OK job on the butterfly keys, the table had turned into a cork screw. One corner was up about 3+ inches from flat. My question is, what could be done to salvage this? I can't imagine what the customer must have said upon seeing this disaster. This piece was about 12 to 14 feet long and over 4 feet wide with a split down the middle about 5 feet into it.