I haven't been shooting my impact much at all like maybe twice a month. But today i was shooting to see how many shots i get per fill. I put 3 1/2 mag through it and my FPS begins to rise after each shot. I have my gun shooting 34 heavies at 833 FPS I only get like 50 shots on the reg. The reg is set at 135 bar i would have thought i would be getting at least 70 shots. What do yall think about shot count and what may be causing my reg to increase pressure at the end of my shot string and how to fix it?