Has any one out there flattened a glued up panel with steam? I read where a guy did this with wet towels and an iron, then added weights. I glued up a 54x54 oak panel for a table top, did everything in my power to keep it flat while drying, but after I took the clamps off the outside edges were 1/4 higher than the center. If I use a router sled I would end up taking off more wood than I would like. Right now it's 1 1/4 thick. Any ideas would be greatly appreciated. The boards I used were from 6" to 8" and I flipped the boards according tho the growth rings (alternating).