Yes, I'm alive! Sorry for long hiatus, but "real life" come in way. Happens.
Anyway, Santa come little earlier this year with nice set of Trijicon HD sights for my HK45C. I used first opportunity to install them. It was not easy, but they sit in place. Then I went to verify zero on the range. On picture you can see two 25 round groups. First was on 15m (some 16+ yards), second on 25m (some 27+ yards) - I think it is easy to tell them apart on first glance. POA was top of front sight "slice" bulls-eye in half (at least I tried to keep it there). Both shot offhand with two hand grip, slow pace (and breaks to change/load magazines every 5 rounds). Looks like I need to adjust POA a little, but overall I'm really impressed with this sights. They do agree with my eyes. I will see how they work on some IDPA matches at first opportunity, but I expect them to do just fine. Previously I used Heinie Straight 8 sights, but those did not work good for me. I did not care much for dot over dot alignment and POA/POI relation was completely of for me with POI much higher than on stock sights. Finally I went back to stock HK sights. But looks like Trijicon HD sights will stay here for good. I also need to replace my aging Meprolight sights on P2000SK and SFP9-SF will need nice set of sights, when I get one in my hands.