I found the video where Steve from AEAC interview Ernest Rowe of how the FX guns are setup form factory. Look from 37:35 https://www.youtube.com/watch?v=ZLnGpvlkhfo&t=2595s So when some owners does not get exactly the one hole groups they see or read about from other owners, it might just be that the owner has to finetune the gun oneself. I do not see this as a critisism from FX, because as I see the guns also has to be broken in. A reg might end up with a setpoint 5 bar higher when broken in than new? That would mean a factory tune would be changed after the gun has been shot x-amount of shots anyway. There is also the simple fact that the factory will not know what weight of pellets the owner will choose. Most who tune theire gun perfection will choose one type of pellet and tune the gun only for that one.
