On the brass picture the top is from the caspian, the lower two are the springfield slide. One of each shows the dimple on the slide decently.
The slide is the caspian. There is a scratch in the breechface from deburring the firing pin hole. It's just cosmetic but since I was bouncing light off the face to show the dent, the scratch is quite prominent.
Headspace was checked, was told it was 'zero'.
My plan for the moment is to go to the .195 slide stop and put about 500 thru it and see what happens. 250 of mine and 250 of factory. Then put the .203 slide stop back in and repeat.