I have a question about procedure with Omega Charger Compressor

I just read where another air gunner connected his Air Charge to his air tank, and turned on Air Charger WITHOUT opening the valve to his air tank so that the Air Charger’s pressure would build up to equal that in his air tank.. His air tank had about 3100 psi in it. He let the Air Charger run until it had 3100 psi in it, too, THEN he opened the valve on his air tank. What I’ve been doing is to connect the air tank to my Air Charger, open the air tank’s valve immediately and then turn on the compressor. My method has been working, but Is his method better than mine?