Hello, being a new shooter, I thought that I would ask for some pointers. A firearms instructor recommend to me the S&W 637 as a carry gun. However, another shooter friend was telling me that the newer S&W guns are not what they used to be quality wise. He mentioned something about a safety lock on the hammer. He basically said a new 637 would be a waste of money, and I would be better off with an older Model 36 or something similar. Any insight?