i was just curious, im not planning on switching from the stock one but ive been hearing about all theese guys cutting off coils and buying lighter ones vs heavy ones or vice/versa. i dont really know what the comparison is or what they would be used for (maybe racing? idk)
Outside of building up a gun or making major changes, there's really no need to leave the stock springs. I'm sure there's some out there who would disagree, but I don't think that for normal use (defense/carry, etc.), that you get better results than with what Glock designed for the gun...especially for dependability.
If you go to a lighter spring the slide will slap every time the gun recoils from the slide hitting the stops
If you go to a heaver spring the gun will have failures to eject because the slide does not fully recoil enough to complete the ejection process