hi, im new to bhq and banshee's, bought mine bought a year ago and im still trying to wrap my mind around the twin cylinders.I read this thread and it got me puzzled!i didnt know the two cylinders were actually connected,the gauge in one cylinder and the inflater in the opposite?is it just crankcase leaking that is being tested? sry for sounding dumb,just dont understand how the pressure flows to both cylinders?