I like your collection, especially the 27 (and this is coming from a short-barrel fan!).
How do you like that gold bead front sight? I've been thinking about getting one for my 65.
The bead is excellent 99% of the time. Its always visible. The 27 was my hunting revolver and the gold bead is excellent in **** lighting. I have one on my combat commander (.45). For a combat sight it stands out and is rugged as the rest of the gun with zero maintenance.
I have been experimenting with the fiber optic sights and I am not completely sold on them. I have a solid gold bead for the 500 also.
With the price of gold maybe I can cash them all in...