The 4" 63 I had also had the dreaded red ramp front, Ive never been able to shoot tight groups with one of those sights, that included. I blacked it with a black magic marker.
For a revolver of that size I saw little need for a holster, one should ride nicely in a front or back jeans pocket, and the 4" was just a tad short; it stayed in all right, but went a bit deep for a quick, easy out from the front pocket. I sure would have liked to have tried a 5" with a good, straight backed, black front sight.
And, FWIW, I wish the factories would thin the front sights a little, they just dont show enough light to either side of the rear notch. I know my eyes are not what they once were, but a little more light either side is way better than too little, even for younger eyes.