Yep, a pretty significant weight reduction indeed, Max. Even more looking at the information as provided by Jim. Thank you, Jim.
As we've always said, it's all down to that question of balance......transfer port size and the choking effect, spring rate, preload, pellet start pressure, piston weight, piston momentum, cross sectional density etc. And will the longer stroke be more efficient, giving that longer power pulse? Short stroke will reduce the first phase of recoil displacement (also dependant on other factors) but, depending on that set-up, could result in harsher piston bounce and higher cylinder temperatures. To a degree I think we all like to sing a different tune and if the result is pleasing, accurate and usable, then it's job done?