Has anyone used the shortstroke hammer and uprated spring from Apex airgun parts? I have heard they will get you better shot count. Just wondering if it would be a good purchase for my BSA. Right now I have it shooting 810fps for 55 shots with 10.65gr. pellets. (.177) Velocity is not a priority as it is a backyard gun. Have one in .22 for longer ranges. In stock form it was shooting 40 shots at 940fps. I have a Huma regulator in it set for 100bar. Thanks for any help, I am not an airgun tuner(obviously) but it is fun to learn this stuff.