I've owned and carried numerous S&W 3rd Gens (and a 745) but have wound up letting them all go over the years.

I sold my 4506 (one of my former duty guns) to my dad maybe 16 - 18 years ago, and had forgotten all about it. While I was over visiting at Easter, I asked if he still had it...and luckily he did. I finally cajoled him into selling it back to me...