Maybe someone can school me on this one. I have owned two 29-2 revolvers, and after I get through a couple hundred rounds, the ejector rod begins to loosen up. This makes the gun lock up and you have to tap the cylinder to open it. Then manually tighten the ejector rod in. That is why I am looking for something in the 29-4 range. I believe S&W corrected this on later models. Is there a later model where S&W changed this?