My story with the GSR.
I bought a GSR and was very excited about it. I had been wanting a 1911 with a rail and bought one of the first ones at my dealer. I loved that Sig.
I took it to the range and shot it. It was the most accurate 1911 I had ever shot. There were a few failures to feed, but I figured that was just break-in issues. I loved that Sig.
It then began to bother me that it consitstently failed to feed. I tried several magazines and different brands of ammo with the same results. Out of ever box of 50, I'd have 3 or 4 failures to feed. I sent it back to Sig and within a few days had it back. Problem was solved by recontouring the feed ramp. I loved that Sig.
Then, I began to notice that the grip safety didn't feel as comfortable as on my other 1911 pistols. The speed bump safety was an annoyance. I decided to replace it and bought a Wilsons. The Wilson was not a drop-in unit so I broke out the Dremel tool and contoured the frame to fit the safety. The results were pretty damned good. I replaced the mainspring housing at the same time and I now had a personalized GSR. I loved that Sig.
I also decided there was too much grit in the trigger pull. That's common on guns with a firing pin safety. I hate firing pin safeties. I took it apart and polished every internal component, including the two little arms. Reassembly was a complete bitch and I discovered that its possible to install them wrong. I didn't find this out until I took it to the range and it wouldn't go bang. Yes, that was my fault, but it does illustrate that added complexity is not a good thing. I finally got used to how to deal with the safety and the trigger pull was smoother. I considered removing the safety, but didn't due to liability concerns. Yeah, I still loved the Sig, but the affair was not as passionate.
Then, I noticed that the pin that retained the extractor could move. It was easy to make it move, simply by pressing down on the extractor. Hmmm... didn't like that. I did some reading and found a few guys who had this pin drop down during cycling and rammed it into the back of the frame, thereby damaging the gun and taking it out of commission. Didn't like that at all.
Hey, how come I don't have night sights?
Finally, it stopped extracting on a consistent basis. I am told this is fairly common and the extractor spring is known to be weak. Maybe that is why they made the retainer pin so easy to remove. I started contemplating this and realized I no longer loved my Sig. As a matter of fact, it just pissed me off. I don't mind putting time, money and effort into a gun to make it just right, but there is a limit. I hit mine when the extractor started acting up.
I sold it for a stupid low price and never looked back. I now own a Springfiled MC Operator and couldn't be happier. Everything that pissed me off about the Sig was not an issue of the Springer. It isn't quite as accurate, but does pretty well.