I was practicing some dry firing and I noticed that I could see the front sight clearly part of the time and then I had a hard time seeing it. What I found out was that when I tilted my head down enough I could see through the top part of my bifocals and then I would try to tip my head back to see through the bottom part. Tipping my head back was distorting the view of the sights. The line on my bifocals are higher than most because I used to work where I had to look up a lot. I have an old pair of glasses that I had made for when I had the old tower computer with the desk top monitor that set about three feet away from my face. I dug those old glasses out and tried them and I couldn't believe how clear the sights are on the gun now. Somebody said on here that some professional instruction can help you to do things right the first time. I am starting to see the value in that. But even that might not have helped me enough until I figured out that I couldn't see the sights properly. Now that I am starting to learn I think that our instructor in our concealed carry class should have told us to go home and practice dry firing exercises up until time to qualify. Maybe if I run into him I will suggest that to him.