I just got a Cricket 2 Tactical in .22 and would like to increase the power a bit. I've already maxed out the hammer spring pre-tension. So the next step would be to adjust the regulator. But first I have to de-gas the rifle, so how should I do that? There isn't a pressure gauge on the plenum and I don't see a de-gassing port anywhere. Any Cricket 2 gurus out there?