I had a S&W, 5” 629-4 back in the mid 90s. Like an idiot, I sold it to buy something, I thought I needed more. Of all the revolvers, that have gotten away from me, I regret selling the 5” 529-4 the most. About 10 years ago, I bought a new 629-something, with the lock. It was no where close to the 629-4. It didn’t have the grip serrations, the fit and finish was no where the same, it had a totally different feel and it had the lock. I tried to make myself like it, but just couldn’t. I let it go and don’t miss it, the least bit. The only regret I have about it, is buying it. At some point, I plan to find and get another 5” 629 from that era. I have a 4” 629-4. I like it fine and will not be letting it go, but that 5”, full lug, 629, is in my opinion, the best 629 ever made. The barrel length is prefect, the weight, the full lug adds, up front and the way they handle, carry and shoot, make them ideal. They don’t carry like a 4”, but are far from carrying a 6”. If I were you, I would glue it to my hand. You have an excellent revolver.