HPA Care Tips?

[TauterTwiggy]

I recently got my first HPA rig and I wanted to know others experiences and tips on care and maintenance.
Do you leave your tanks filled between games? Do you leave pressure in your regulator? Do you remove your regulator when not in use? Teflon tape all the threads?

[Gimpalong]

I leave air in my tanks. They're designed to hold air and holding air won't damage them.
I unplug my air-rig and de-pressurize everything. I suppose you could leave everything pressurized, but why would you want to?
I remove my air-rig from my tank, but this is mostly because it's easier to pack everything down when the air-rig is off the tank.
I don't teflon tape anything that is meant to be screwed in and unscrewed on a regular basis.