Originally Posted by tonycon
With the sl3 regulator on the geo you can basically run any pressure reg.
very true. however, I would not recommend using the SLP tank regulator with it. Its too close to the threshold of operating the Geo and Egos correctly. Some people have experienced shootdown and not being able to chrono over say...260fps...while others have had success. The SL3 reg from PE is rock solid; great design