I didn't force carbonate. My lines were too short so I doubled the length. The keg I was using at the time had a bad post ring. I couldn't hear it, was not losing co2 either. Took it down to the basement tub with some star san and there they were...bubbles. Replaced all rings and hooked her back up at around 2-3 psi. A perfectly slow pour, finally! I did these repairs to all of my kegs even though they weren't due for it. Who needs air in their lines, right? I think the correct line length really helps out too. You guys got me looking so, thank you! Cheers!