Sear spring selection won't affect the DA Pull weight enough to measure.
I've used the initial dark, the natural,and the red CGW springs getting from 3 to a 4 # pull weight (incl a lighter safety plunger spring) with a CGW hammer. Found about a 3 oz variance between 3 samples of each color spring. Now using the stoutest red spring, a 13# hammer spring, and the CGW hammer to get a 4# trigger pull with the best least felt creep feel to me in my PO7 that I carry.
Can drop to 3# by changing the sear spring but it,s pretty light for a carry pistol.
