I cleaned the barrel with Goo Gone and then shot some different pellets to find out how it does in stock non-PAL form.... Here are the results....
From 200 bar down to 85 bar it delivered over 200 shots (23 9-shot clips) within less than a 6% range.... Dropping down to my standard 4% ES requires filling to 195 bar and refilling at 90 bar and gives 21 clips or 189 shots.... The lightest pellets (17.3 gr. Lasers) shot 450 fps (7.8 FPE), H&N Match 21.6 gr. shot 420, JSB King 25.4 gr. averaged 393 fps (8.7 FPE), Baracudas shot 365, and EunJin Domes went 345 fps.... The EunJin Points were too long to cycle reliably in the magazine, but loaded singly shot 320 fps (9.5 FPE).... The 189 shot string of JSBs used 105 bar of air from the 230 cc (14 CI) cylinder for an efficiency of 1.12 FPE/CI (14.6 barcc/FPE)....
All this gives is a baseline for comparison after I swap out the valve stem for the full power one.... It will be interesting to see the difference....
Bob