[Matt C]

Not if their primary regulator is upstream of their tanks, and their tanks are running at 60 psi. If they are doing this, and regulating their secondaries to say, 30psi, they will get the airflow to allow the pistons to actuate faster without completely emptying their system every time.

I'm assuming that they are using 4 cylinders, each part of it's own leg off of the primary system, with only the output of the compressor flowing into the primary regulator.