After your initial issues with your GP-100, I went to look at mine.
NEITHER once of mine exhibited any cosmetic issues. And both shoot quite well.
Then I looked at a few my friends GP's,, and again,, I didn't find any issues. And their guns shoot quite well.
I fully agree that any gun model can have a few bad ones escape the factory. And I agree that a company should make it right.
I once had a Ruger SR9 that had barrel peening after use. Ruger replaced it,, at my request. They offered to repair or replace it.
But I've also seen guns from Ruger, Colt, S&W, SIG, Kimber, Canik, Remington, Browning, Beretta & others have cosmetic issues, yet shot like a dream!
I've been known to say; "I'd rather have a lady in my life with a few cosmetic flaws,, that has intelligence, skills & gets along with me over a perfect looking trophy."
A gun can have cosmetic flaws,, yet be very accurate.
Do NOT take this post to say I can accept a cosmetic flaw that has direct bearing on it's performance.
Performance first,, over looks.
Or,, looking at it another way,, how does it shoot?
Your first one,, you said it shot very well when it shot. Apparently it would bind up after a few shots. That was not acceptable. But I disagree that it was not repairable. It may have not been "cost feasable" to repair,, to Ruger. AND,, they may have wanted to give you a new gun to make you happier. Yet,, they didn't have any immediately due to current production.
And I fully understand being a bit "brand & model shy" after having a bad experience. But giving up or discounting something after one bad experience would be like giving up on ladies after one bad break-up.
I once bought a brand new Kimber 1911. It felt super good in my hands, and locked up tight. I was happy to get it. The very first outing,, after the first magazine of ammo,, I started having problems. The hammer would follow the slide to half cock. AND it shot 4" low & 10" left. It had fixed sights.
Back to Kimber.
They replaced the hammer & sear.
It still shot 4" low & 10" left. AND after about 200 rounds,, the hammer started following the slide again. Again,, Kimber offered a bit of a fix. It didn't work.
THEN,, I decided to get a competition quality hammer & sear,, properly mated. AND,, I had the gun milled & installed adjustable sights.
Now,, after well over 25,000 rounds,, that gun has been a highly dependable AND accurate competition gun. In fact,, just yesterday,, at my USPSA match,, a few of us decided that next month,, we'll all bring our single-stack 1911's and competed against each other again.
I was a bit shy about Kimber's because of this. Yet,, I won a Ultra Compact 1911 in .45 acp. I considered shooting it. But following my own advice,, I shot it first. Accurate, easy to carry & I've never regretted keeping it.
And my youngest son just bought a new Kimber 2K11 in 9mm. He shot it & loves it. I've shot a few of them as well, & would quickly buy one if I decided I wanted or needed one.
And I eventually found out WHY my problem Kimber had such issues. It had to do with the fact that the upper management at Kimber had sub-contracted out parts,, that were NOT properly built.
So,, keep looking for a nice GP-100,, and if you find one with a few cosmetic issues,, don't automatically discount it. There are WAY too many GP-s out there that are quite good. There are FEW bad ones.