So it appears that they lifted the Cv spec. this year because as one other post put it: they limit the port size and “let nature take care of the rest”. True, it appears that with 1/8" ports, 60psi, and 0.16" tubing you can’t move any cylinder with enough force fast enough to punch this ball, you would have to use a ridiculous amount of small cylinder-valve combos in mechanical parallel to even have a shot.
R77-C(Solenoid valves with a maximum 1/8" NPT port diameter) is very specific about the port size of “Solenoid Valves”, but if they meant to include all valves why didn’t they just say “Valves”. We know manual valves are allowed because lots of people use the little brass one that used to be included in the kit to vent their pneumatic system (referred to in the rules as “pressure vent plug”). So the question is can we use manual valves so long as they aren’t modified, and if so can their port size be 1/4 or 3/8 to get more flow? The rules don’t specifically say you can’t use manual valves and R77-F(Pressure transducers, pressure gauges, flow control valves, and connecting fittings) says you CAN use “flow control valves”. Technically a standard 1/4"NPT ball valve from home depot is a flow control valve.
From a safety standpoint I really can’t see why they appear to be holding us back with pneumatic flow. R90(The outputs from multiple valves may not be plumbed together) and the 1/8" port size rule really make it obvious of their intentions. However it IS OK to: mechanically hold back a 3ft long pneumatic cylinder at 50% extended, pressurize one side of it with 60psi, then let go mechanically; that is far more dangerous than just letting us have enough flow to punch the 2014 game ball.