Omaha,
My opinion isnt going to change, I practice and shoot with mine all the time, and the only time I have had the sights not lined up, is when I force them not to be, and that takes deliberate effort.
Even without night sights, the sights should be lined up where your looking when the gun comes up. You can do it in the light with your eyes closed if you need to see what I'm talking about. If they are not lined up on target when you open them, your doing something wrong. Do you have the same trouble lining up three dot sight sights in the day time?
All the night sights do is help you to index the gun and let you see what you cant in lower light. The sight picture and speed come from repetitive practice.