hillestadj: The maple slab has been drying for 3 years. Thanks for the planer advice and recommendations. I've used planers before, but not well. I definitely need to watch a few videos and lots of practice. What are winding sticks?
Wood dried in a kiln is dried over a very short period of time (compared to air drying) and 4/4 red oak can be dried in just a few days (vacuum kiln). 8/4 bigleaf maple will take over a month in a typical kiln, but obviously well short of two years. Also, the move from wet side Oregon to west Texas will make a lot more water decide to leave. Or a move from eastern Oregon to CC Texas might leave the wood soaking up water. The drier it gets and the longer it stays that way the better.