Solus, thanks for the Helinox endorsement.  I was pretty high on those chairs until I started seeing a few discrepant reviews (on Amazon, I think). 

ST, that chair would work REALLY well for me about 1/2 the time.  Along the lines of what OS is saying, I kind of need to be able to move the chair where I need... and trees, while all over the place, are sometimes not strategically situated.  Still, I hadn't thought about that approach and I'm always open for a new way of looking at & doing things (though the whole "canoe sail" idea has been pretty much a bust; anybody want a great deal on a PINK canoe sail???).

Keep the ideas flowing, guys.  Thanks!

Jimbo   8-)