I'm glad you're shooting that M-10, it would be a shame to waste a sweet-shooting gun like that. I've had several S&W revolvers thru the years, some better than others. Some were issued, some were privately owned, all were emminently shootable. I'll never buy a Smith with a lock on it, I think the older guns are tougher, slicker, and more enjoyable. I carry a 4" Model 10 on duty, and have for years. Some time later this month I'll fire my 50,000th round thru it since I got it. And it's as tight as ever. I don't abuse it, and it doesn't abuse me. We get along just fine!
Papajohn