Kern You might try your gun again before you make drastic changes. I've noticed a couple of times now when I couldn't hit the broad side of a barn. Each time there was some bright sun on the sights and I had let them get a little bit shiny.
That said, if the peeps that ol' blue knows of aren't too expensive and easy to install, I may have to give them a try myself, better late than never. I've always preferred peeps on my long guns that I don't want a scope on. And, I hate scopes and dot sights on a 6 shooter. I put them on, and a week later they are off again.