I chose to pair the same colored fiber in the front as in the rear sight as green is much better perceivable by the human eye.
That said, the front sight works really well.
The only thing I would have preferred is that the diameter of the fiber rod could be bigger. Right now it's very thin and you do notice that in the amount of light it can accumulate and project to the end of the rod. It's just that much dimmer than other fiber optic irons.
All in all, a great upgrade to a great revolver.