Harmon:
Thanks, that's good to know a stiffer recoil spring can slow that slide down a bit before it comes to the end of it's travel. I did cut a turn or so off the hammer spring, to reduce that 30 pound trigger pull to about 29 lbs. I also got the dremeled off a bit of metal from the trigger bar, so in single action it doesnt engage at front of the pull, you don't have like a full inch of overtravel this way. Now the single action sear engages much farther back in trigger travel, like a regular gun.
The stiffer recoil spring is probably good advice for PPK and PA 63 owners too.
Doc, thats quite a photo, is that about 20 grains of WW296 behind a 125 gn HP?