Bought this set to serve (NOT carbonate) a 2.5 keg of IPA at a New Years party down at our beach-house. I knew full well that it would involve a bit of tinkering because of the stats of the regulator. After it was all set up and leak tested, it seemed to work fine for pushing with the exception that no matter how gentle or slow I tried to "crack" the valve on the regulator (to allow only a small amount of CO2 to enter the keg) it was very difficult to get it just right and not foam up when serving. I ended up just leaving the regulator/CO2 on at its lowest open "setting" but disconnected from the keg. Whenever pressure ran low, I just would raise it up a hair by quickly bumping the keg with the disco in momentary bursts. This seemed to work to solve the situation. If you're in a bind or willing to sacrifice a bit of simplicity for cost, this little set up works great. If not, you may want to investigate one of the mini-regulators out there that operate at the lower dispensing pressures. For my purpose, it worked fine though I must admit, the next mini-reg I buy will be one that can be physically set, and left, at serving pressure and remain connected to the keg.