Here is a tgt that was shot with the original barrel(yellow) and then about a week later after the barsto barrel(red) was installed by SP. The XDm also has fiber optic sights and a 4# trigger, they were done when the pistol was purchased from SP.
This was 25yds, off sand bags w/ 124+P Gold Dot:
The low shots w/ the barsto installed were the first shot from the magazine for each string. I'm not sure if this was caused by me(wanting to see the poi for the first shot) or a characteristic of the pistol. Maybe a combo of both.
I have over 1500rds through the pistol since the above photo was taken, I may try another set of groups with the 124+P GD.