Thanks so much for your input. That's helpful. One of the things that concerns me over the design is the moment-arm that's created without any type of "stay" (maybe from the outer bar down to the fender bolt on the fork crown). But you are the second person who has stated that it's secure - i.e. that there weren't any problems with it rotating down under hanging gear weight (or up when gripping the bar ends). I imagine that special attention to how tight the stem bolts are is part of the key to that. So, that's encouraging.
Side note: I read over your account of your 6-day adventure a few weeks ago and really enjoyed it. Thanks for taking the time and sharing it!!