OK, Konrad, that's another fine mess you got me into! True to REI's 2-day UPS shipping, mine just arrived. I put one together, took it to the patio for a test sit, and I was almost, but not quite, totally underwhelmed. Man, these are made for hobbits, not manly men like you and Adam. I'm going to hit the local custom bike shop and see if they have some scrap titanium tubing that I can slide onto the legs to raise the stool maybe 6". The second stool will be dyed purple and set on your door step when you least expect it! By the way, mine weighs 10.8 oz., without the stuff sack. Not too much lighter than those REI 3-legged stools.
Merry Christmas, anyway, K-man (the other gear enabler).