I've often thought about round-butting my early 80's Model 15. Why? It's definitely a shooter and not a safe queen. I really don't like the feel of the S&W square butt K Frame grips in my hand. To me, it feels like I'm holding a funnel upside down.
My very favorite old-time gun writer, Maj. George C. Nonte, from Peoria, Illinois wrote up extensive directions on how to do it.
I just haven't got around to doing it. Maybe when I retire soon I will.
I would never sell that gun so why not configure it to my liking?
It would make it easier to conceal and carry.