With the 25# spring nobody is complaining of light primer strikes anymore. But I think the failures with the original 16# are the minority of users. ARC has 3 different springs you can buy, 16#/19#/25#. It will come with the 25 and you can buy the others for cheap. I would *highly* recommend you try the 16 or 19. It's quite a bit of difference on the bolt lift and if it works for you...then great!