This is probably a silly question and I'm just not thinking it through but how much of the 6ml bottle is actually usable when you're sqonking? I keep staring at pictures and I figure that at some point there's so little
juice left in the bottle that you'd have to squeeze the heck out of it to get it to feed.
Am I missing something or is the usable amount of
juice somewhere around 3-4ml? Don't get me wrong, whatever it is it's better than carrying around a bottle of
juice and dripping 5-6 drops at a time.