well that pretty much sums up that... Just for some assurance... I have kegged many times and never had a problem with beer getting into the gas line either. you should be fine. When force carbonating... I usually throw it in the mini fridge and just turn on the gas at designated pressure right away. The next morning, I check it and since the temp drops you have to readjust the pressure. Then wait a couple days and you've go it! Unless in a rush, I prefer this method much more than just cranking the pressure up and shaking it. You have more control over how much you carbonate it. I sometimes crank to 30 just to get it started but then just let it chill, and equalize on its own.