Is there really any advantage or disadvantage to the old valve compared to the newer cartridge valve? And does anyone know where I can get or how I can make a sheridan valve tool? I'm hunting for a candidate for a semi pgp and I found a few w/ old valves and was just wondering if it really mattered.
Also, the aftermarket velocity adjusters from like cooper-t, etc...will the old valve interfere w/ its installation or operation at all?