Correct me if I'm wrong but wouldn't a spring that's TOO LIGHT cause more felt recoil as the slide slams to the rear of travel at higher speeds?
Wouldn't a heavier recoil spring that decelerates nearly all of the slides velocity before it bottoms out a the back have a softer feel?
I'm just basing this off of tuning AR's where you ideally want a heavy enough buffer and heavy enough spring that the the carrier just barely kisses the back of travel before moving back forward.