I finally figured out how my Huban regulator works (or basically any regulator) answering my original question above. The red, green, yellow gauge on the regulator (bottle pressure) is always pressured considerably above the black/white gauge (regulator gauge); i.e. the red, green, yellow regulator gauge is pressured to max 3000 PSI (on my CondorSS) via the bottle, and the black/white regulator gauge will continue to indicate 1800PSI (as pre-set on my regulator) until enough bottle shots have been fired to reduce the bottle pressure from 3000PSI to 1800PSI. The bottle pressure to each pellet in the chamber is controlled by the regulator and kept "regulated" or even pressure per shot down to the pre-determined base 1800psi regulator pressure, when the bottle (if not refilled) pressure will continue to decrease the energy and velocity of each pellet until there is no longer enough bottle pressure to fire the pellet. Forgive me for being so ignorant and long winded!