I hand fitted a Smith and Wesson gold bead front sight to one of my .327 Federal molels and I really liked it. After I drilled it, I had the height wrong. Everything needs to be tight and flush with all surfaces. I had a second one just in case, but they have been close to 60 bucks. From what I learned, the next one should be correct.
I also like plain black, but prefer a steeper "improved" ramp....less reflected glare back at you.
I have no use for the light tubes for precision shooting....red or orange inserts either.
I have an OM six and a half inch .41 that has an aperture rear and a tittie pink ramp front sight. The action is superb and I think Magnaport did the front sight and the work. The sight picture is fast and useful in the woods for deer.
Bowen has vertical white bars that should center well, but I havent tried a sight with that.
My autoloader Springfield HDs have three white dots that cannot be beat. White reflects all available light, not just one color. I am an optometrist, and advanced gun tinkerer.