What makes the 6" barrel less desirable? I like the idea of the additional 1 or 2 inch of sight radius for accuracy....and I'm not necessarily buying this as a straight-on collector piece, more of a shootable collector piece....to sandwich in between a Combat Masterpiece, a Victory I want to someday add, and a 19-5 as an example of a more "modern" S&W.

Also, the guy who owns it seems to be saying the brass bead was factory installed, albeit non-standard. Does that sound right?