I do a fair amount of quick reading posts on the air gun forums, and after seeing a new leveled shot string emerging from higher flowing modded valves and I need to ask. Bob is your newly tested (and confirmed) type of adjustable hammer benefiting from increased speed and lower dwell using more momentum, and later impact to the valve stem? Is the valve block the stopper, and the adjustable stem striker the initiator excited or retarded by adjustment? I'm pretty sure this is what its turning out to be and could be opening up a new can of worms in pcp efficiency/ fpe