I also had a "108282" Smith & Wesson 1911, pre-E Series. It was stainless, non-Billboard and it did have the swartz safety/grip safety actuated firing pin lock.
This pistol was a total sweetheart and I regret that I did not keep it. My good buddy bought it new hmmm... around 2009 I think? He paid $949 before tax. This pistol was simply not "average" in build quality or ability.
I had it for a short time and I ended up selling it to another good friend. This became his first ever handgun and I have warned him that it's a pitfall to start with some -this- nice... have tried to clearly express the idea that most pistols he may go pick up in a gun store are going to feel like (and will be) lesser guns in most every way.
If it were just about this pistol then yeah, I do regret not keeping it. But when all said & done, I know I cannot keep every handgun that passes through my hands. I feel awfully good about my buddy's FIRST gun. You only get to do that once.
I have found the E-Series to be a decent gun and a solid buy if you shop well and get a good price, but that 108282 was simply a far better pistol than the E-Series. Just a fine pistol and as a full "production" 1911 goes, awfully tough to beat.