Looking to upgrade my Glock 22 from factory sights to night sights, and I am close to decided on Trijicon's HD series. I like them for their construction, the slightly higher profile, the larger cutout on the rear sight, and the fact that the irises on the rear dots are blacked out, drawing your focus to the front sight. Lots of pluses. But I was hoping to hear some feedback from those who have had some real practical experience with them. Thanks in advance for any good info out there.