I had the opportunity to shoot a 25cal Impact about 250 times today. I was pleasantly surprised to see how close to the velocities my Impact was to Michael's velocities posted earlier. Two hundred and fifty times is no where near enough shooting to figure what is happening with this airgun. I only adjusted the power wheel and valve knob. I did not touch the regulator screw. This Impact's regulator was set at 150bar from AOA. I may have them lower it to 140bar. I shot the 25.4 JSB's to 965fps. but the accuracy was not as good as around 900fps. The wind was blowing left to right and right to left pretty good and the higher velocities seemed to get blown around more for some reason. I'll shoot more this coming week. I don't know what else I can add to what Michael and the guy's that have had their guns for a while have said. It will be interesting to read what people find out about their Impacts with all the possible settings this gun offers. I just hope everyone will read the manual and go slow so the regulators are not ruined. I am really glad FX included a manual for this gun. Have fun, Scott