I've done some reading on the CSV valves. Let me see if I understand this correctly.
Lets assume I have my press switch set to turn on the pump at 60 psi and turn off the pump at 80 psi and I have the CSV set to 70 psi.

There's no flow, pump is off, system is at 80 psi. I turn on the shower. The press starts dropping from 80 to 60 psi. When it hits 60 psi, the pump comes on. The pressure builds to 70, then the CSV throttles to maintain 70 psi. When I turn off the shower, the CSV allows 0.5 - 1.0 gpm to leak thru to charge the bladder tank. When 80 PSI is reached, pump turns off and the system is ready to repeat the process. Is this right?