Am pretty new to airguns still but im trying lol. I have a 4500 psi bottle upgrade and a tx2 valve on my rig. Im not going to push 4500 lol more like 3600/3800 max at this point. What hammer spring should i use ? Ive tried to reach out to airforce but they dont reply much at all. Is the hammer spring the same as the 3000 psi version to the 3600 tx2 valve version? .ive been told they have the same spring and valve except the bottle is the only difference. Id like to avoid valve lock issues ! And dont know if theres a more efficient spring upgrade to go with. Seems mixed results with spring mods. Thanks for any help!