I have a bunch of 9' long by 6" 4/4 rough sawn (flat sawn) white oak in my garage. I'm curious as to whether I should expect it to cup and/or bow over time. It's kiln dried. I have it in stacks, 11 pieces high, on some 2 x 2 yellow pine every 14 inches or so to keep it off the floor. I live in a relatively humid climate. Should I expect that this lumber will change much over time? I don't plan on using it for the better part of a year. Is there anything besides what I've mentioned that I should do to keep it more stable?