Dave: Did you come up with your Extended Slide Serration Concept out of the blue or were you influenced by something you had seen in the past? I'm not wanting to take anything away from what you did here but something about it does seem a bit familiar. It was a great idea; too bad it wasn't picked up by the factory at some point. Although I guess we can be grateful, for as you point out, at least some of the Performance Center's attempts to move things in that direction in other ways and in later years have trickled down into S&W's line in general these days.

The sad thing there, I suppose, is that while the factory has, as you say, employed those Performance Center-originating fish scale-like surfaces at the rear of their Enhanced series of 1911's, they have also taken the "belt & suspenders" approach by still including the (now trendy) additional ones at the front! Nothing like attempting to solve one problem while possibly contributing to another.

in general I object to front slide serrations for 2 reasons
a) they chew up and/or stick in good holsters
b) as an instructor I hate encouraging hands to be that close to the muzzle

/c