Try it without one of the stabs. It sounds like your bottle can not keep up with the gun. Watch the gauge when you are shooting. If it air pressure decreases as you shoot the stab is not getting enough airflow. I had a very similar problem. The hole in the ASA on older A-5s was too small. I did not notice it until I got my stab and remote line.

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If vegetables are bad and some people are bad, then are some people vegetables?