Might want to look into the relationship between mainspring, FP stop and recoil spring.
The mainspring (hammer spring) and FP stop (stronger/weaker hammer spring, round or flat bottom FP stop) will affect the recoil spring selection.
I've always thought that 1911 "recoil" spring should be named "return spring".
Tuning the 3 together can make a huge difference in how well the gun returns to target and felt recoil.
ETA, how well the barrel is fitted will also make a big difference as well. The well fit and timed barrel will stay locked to slide for a longer period. Sloppy fit with little lug engagement = quicker unlock and faster slide speed.
Last edited by blindshooter; 12/12/23.
