Whats the verdict with headrest AND tripod?
Haven't tried that combination (yet).
With the binos mounted on a tripod, you'll no longer be pulling them against your face (exerting downward pressure), which makes the head-rest a tad redundant from a comfort standpoint.
That said...I wonder if the headrest would allow for more repeatable positioning of your eyes on a tripod mounted bino? I.e like the Swaro BTX spotting scope.
That way, as soon as your forehead hits the rest, your eyes are automatically centered within the eye pieces.