Originally Posted by HairyDogBrewing
I've found that if the beer and bottles are cold (33F) and the head pressure is low (5 to 8 psi), then I dont need to use the stopper to create counter pressure.
Whether or not you're able to forgo the stopper is dependent on a lot of factors in my experience, the majority of which I haven't been able to identify ha ha. It has been trial and error with each beer on my system, so make sure you have the stopper handy.
It's well worth the effort though, especially when you bring your homebrew to a buddy's place who still bottle carbs his beer. They almost snatch it out of your hand when you start drinking it from the bottle! It's as though they feel responsible for saving you from the evil yeast deposit
they're accustomed to finding in the bottom of their bottles. Ha ha ha