Commonly, the statement is: "When I set the PSI Gauge at 700, sometimes I have a drop of down to 500-450(250 psi less on the needle), and now it is dropping all the way down to around 150-200 psi on the gauge.The size of your jet nozzles will help determine the drop on your gauge!
Ever use a Garden Hose with a nozzle on it? The GPM available remains the same, however putting a nozzle on the end and selecting the amount of flow you desire, will determine how much water comes out (volume) and how much water remains within the hose.
I'll bet most of you already know this, but............
The JAGUAR MX-2 ETM @ cross-american.com