Now here's a man thinking outside the box... and some darn good reasoning too. Heck yes "green" cut elm shrinks, and it shrinks a bunch when left in rounds, but not so much when split. So yeah, an un-cut, standing-dead elm would haf'ta shrink a ton as the moisture (large amount in white elms) leaves it. Does it compact the fibers making the wood more dense? Well, I don't know... but that's surely the best, and most logical explanation I've ever heard.
Same here. It would also explain why ricks of wood that should hve been fully cured a year ago will still be "working and settling" a year later.
Harry K