Why do you think you need to change the recoil spring in your pistol? Is it simply because advertising and a few forum posts say that it is a good thing to do or do you actually have a problem with the pistol that a stronger spring MIGHT solve?I am thinking about the Galloway 20lb spring for the LC9? Yea or Nay ?
Does it make any felt difference?
I did the upgrade due to failure to feeds using certain ammo, there was hardly any recoil prior.....Going to the range today for the first time since the install.....I'll see if your conclusions are true....I went to the site that sell the spring sets for the LC9 and LC9s. At the spring info page for each model they mention ammo limitations. For the LC9s they mention 3 or 4 types of ammo your weapon will not work with anymore. The 9s installation video mentions the new striker spring is lighter than the original. The striker spring is just like a hammer spring and if you lighten it up you have the chance a light primer strike and your round will not fire. Using those products makes no sense to me.
On a hammer fired weapon the hammer is partially cocked on a double action (LCP)(LC9) and fully cocked on a single action (1911) as the slide moves rearward.
On a striker fired weapon, (LC9s, Glock, SR9c) the striker is cocked as the slide moves forward.
There is a fine line when you mess with spring rates. Heavy springs on a LCP and LC9 will make them more prone to limp wristing, shooting on the move, and weak hand shooting malfunctions. Using a weak striker spring on your 9s carry weapon might cause light primer strikes.
If felt recoil is an issue try one of the fine 9mm 147grain subsonic loads in your carry weapon with the stock springs. Denny