im not sure im on the same pages, so to speak, in this matter. a more detailed understanding is needed. it has been my understanding , that the most effecient pumper expended all of the compressed air with each shot. that a "reserve" would make the next shot inconsistent if the "reserve volume was an unknown quantity. as far as i can tell,without some kind of gauge on the chamber,the volume/pressure of reserve is estimated at best.
a crash course in this would be most helpful.
