i don't have a Security Six, but awhile back i bought a Service Six with 2 3/4" barrel stainless. Did some polishing on internals, added hammer and trigger shims and resulted in one of the best DA pulls i have experienced. The Service Six is a fixed sight,square butt revolver. I wanted a round butt so bought some Speed Six RB sevice grips to use for a pattern and went to work.Grip config is the RB sevice grips with a t grip adapter. I'm 62 and my eyesight ain't what it used to be so i bought a tritium XS dot sight made for a Smith and Wesson j frame and fitted it to the Service Six/Speed Six. This poor revolver has suffered from my administrations since the day i bought it(i paid $300 cash). Here she is
Zoner...
Your Service Six looks terrific. I've done the same to several square butt S&W and Ruger revolvers over the years. The round grip profile suits me much, much better.