Just an update on Discovery Valves - my valve came in last week, it's a monster. It weighs over a pound and is about the size of my palm. Still works fine to control the flow, it just looks massive hanging off the end of the boka's 1/4" tubing outlet. At least it's only SS & teflon. Just a forewarning to anyone concerned about aesthetics.
"A little learning is a dang'rous thing; Drink deep, or taste not the Pierian spring: There shallow draughts intoxicate the brain, And drinking largely sobers us again." - Alexander Pope