Ignore the lock, be grateful for MIM parts!
I have owned, bought, sold, traded and shot more S&W revolvers since the late 70's than I can recall. A few points to remember; ALL gun manufacturers have had quality control issues on occasion throughout history, not only S&W, but Colt, Ruger, Kimber, etc. Remember, years ago, prior to the internet, the issues just were not widely known. It happens. I despise the damn lock too, but truth be told, in my opinion, the modern Smith and Wessons are just as well built, if not better than the older models. MIM parts have their advantages; primarily cost and durability. And replacement parts (if ever needed), don't require as much effort to make them fit and function properly. The modern Smith's are more accurate and you can shoot the heck out of them without worry. Ever hear about the old 29's and 29-2's "skipping", the cylinder reversing itself under recoil so the next shot hits the empty, previously fired case? It isTrue, I had it happen one day years ago, several times... on the range with a buddy's old 50's model 29. SW fixed that issue with modifications to later models. Over time, reputable companys like SW try to IMPROVE their quality, as well as cut costs if they want to ensure profit margins for shareholders , improve customer satisfaction and secure long term market growth. The despicable internal locks (which I agree are ugly and a reminder of a changing society), despite a few incidents primarily involving hot loads and scandium framed guns, have proved to be a non issue for hundreds of thousands of shooters. I have several newer SW revolvers with the locks, and hot loads haven't caused any issues, and I trust them enough to carry concealed when I'm off duty (yes, a few of us LEO's still carry wheelguns when not restricted by Department policy). The bluing is excellent, "almost" as nice as on the vintage Smiths (this one point in the "Vintage VS. Modern S&W" argument I will concede, as those older SW's have a blue finish that is superb). However, Don't think that these new SW are not lookers, as they are VERY pretty, both fit and finish on metal and wood. Definite pride of owneship if one can overlook the minor cosmetic changes and appreciate the modern enhancements! The new SW revolvers are stronger and much more durable and have a full warranty with a superb service Dept. if an issue should arise. Don't even turn the locks if they bother you, just do what I do and forget about them and enjoy owning and shooting THE best made revolvers in the history of mankind. I have a hunch if my idols were still around (Keith, Jordan, Cooper and Skeeter), they would agree the lock was ugly and unnecessary, but they would praise the improvements, accuracy and quality of these modern weapons. Go ahead and buy that new SW and buy it with confidence.