I had the same issue on both of my Brew Logic Dual Tap Draft System, and I received the same recommendation from Midwest. I executed these steps, and only free'd one of my regulators up, so I decided to investigate. I pulled both of the pressures control knobs off with a crescent wrench, and pulled out the rubber boots. After inspecting the innards of the knobs for a comparison there was no difference. After looking at the main bodies I realized that the pin controlling valve was half way closed on the stuck valve. I then tapped on the body with my thumb, and the pin slowly popped out a bit more each time. I then grabbed a pair of needle nose pliers, and then worked the pin/plunger in and out until it popped out almost instantaneously. I then rebuilt the regulator, and connected it to the co2 tank. After repeating the aforementioned process from Midwest, it now works like a charm.