I have a recent production standard 640. Shoot it very well. We qualify out to 25 yards and I have no problem. Little orange paint on the front sight and I was good. Carries great in my Lobo Leather offset belt clip. It’s with me everyday, at work or off duty.

No experience with the pro models. I like the idea of the sights, but I don’t like 3 dots. I prefer an all black rear sight. So the standard model is just fine for me. And I found a good deal on it.

Only change I made was a set of UM boot grips instead of the standard 3 finger grips it came with. I like flush bottom and exposed back strap