Den,
Thanks. That makes sense. I have another kit I'm ready to cover and will make sure to do so before it gets "moist" again in the spring. I had humidity play another trick on me once when I laminated balsa fuse sides to a plywood doubler. I glued the pieces together- nice and flat, but when I went to assemble the fuse, the sides had bowed terribly due to the balsa and ply swelling at different rates. I had to clamp, push, and prod in order to get the pieces to go flat while the epoxy cured. (I am a slow builder, and sometimes seasons pass before I complete a plane).