As I do every time I go to the range, I start off with a cold 200 drill (Sayoc Tactical Group) with my G19 Gen4, Barsto barrel and Trijicon HD Yellow dot front sight.
As you can see I threw a round into the 5 ring, that was other strong hand first shot. I put the gun down and walked away from it for a few seconds. I also threw a few shots free-style and one hand strong hand into the 7 ring. I am still having issues trying to get the Trijicon HD's to line up properly for me. I am putting the front ledge of the sight between the 9 and 10 ring and getting shots to the left of that, sometimes POA/POI, sometimes slightly high. My sights may be off slightly since the majority of them are to the left, the low shots were all me rushing the trigger. I put up a 171, or 173, depending on how you count it. Realistically I should not have a single shot out of the 8 ring.
I also installed an old pair of Ameriglo Kyle Defoor Sights on my G17L (picture below). The sights are .115" front and .150" rear, so they are super fine/sharp. Which provides a very accurate sight picture. It also helps that they are POA/POI at 25 yards. The G17L performed well, I put up a 92/100 on the same target and wash in a rush, forgot to take a picture of the target. I replaced the Ameriglo CAP Sights I had on the G17L before. The CAP sight are good for close sight acquisition but not for what I want the G17L to do (distance accuracy shooting). I will be doing a write up on the CAP sights later.