I have shipped these. some of them are 600lbs.
Although there have been issues on shipments and some I expected were lost or would die, I haven't lost one yet. There is a first time for everything
@Stickroot does the best job of packaging a tree I've seen. He sent me a decent sized trident a while back, and the packing crate was so well built that I kept it and turn it upside down to use as a portable makeshift workbench.