@edgarblythe,
I figure you have tried staking it? I've a photo I took of young triple staked trees in Lucca. Oh, my, Lucca - the old city is high up relative to the newer areas and the entire perimeter of the high part is a walkable park, with a grassy swath below, the high part held by a humongous wall. Anyway, that's where I saw that staking, and it was three posts with wood also between the posts around the tree to help hold the stakes apart in big wind, at the somewhat higher part of the tree.
I'm sure it's not now in my photobucked batch of stuff, so never mind. That may have been the only triple staking I've seen, not sure, except when people are guying bigger trees...
Edit - maybe a double net layer, a little bit apart?