Hi! 1st attempt at tuning my Air Venturi Avenger .22 to an "Eco tune" of 1400 PSI Regulator and 1.5 + Hammer Spring. Brought hammer spring up 1.5 turns from zero. Regulator already displayed 1400 PSI, so had no need to adjust that. So, I topped off the air reservoir to 4000 PSI (up from...