Let's us know your findings Phil -
I used the One Ragged Hole sight this past Sunday - shot a couple hundred rounds. Bottom line, I did not shoot any better or worse using the aperature sight than I do with the stock Redhawk sights. It is a well made (and simple) product and very easy to install. Don't let my findings dissuade you from trying this aperature sight if you have been considering it. Buck Hibbard of Oneraggedhole guarantees satisfaction - you can't beat that.
When I ordered the O.R.H. sight, I also ordered Ruger's gold-dot post, V rear sight combo. I installed Ruger's after-market sight last night and I believe I have found the perfect combo. I REALLY like a small front sight ..not the standard 2X4 ramp found on most revolvers!