So let me get this straight... It's actually worse to keep a completely empty magazine with no gas, and that it is harmful to the mag if I use valve release button?
I've owned a Glock 17 for about 4 months now, and I made sure every time before I store it I use the valve button to release all the gas to make sure that valves are not under pressure...
Was I doing it wrong the entire time?! D: