hey guys, I just picked a few thc cartridges for my pen. These new carts have a tip that you can adjust the air Intake. Turn it all the way closed or open it to let in more air. Never saw that before. I’ve been using it with the breather all the way open but wondering how it differs closed vs open. Does one way conserve oil better or what? I don’t want to waste it figuring it out. Thanks.