so I'm not the only one to think that
That would be the late 696, of which S&W sold dozens and dozens before they were disco'd.
I have a couple of 629's in 3-inch, one a Magna-ported Trail Boss. They're a handful with full-tilt-and-boogie ammo. As horsepower decreases, they become a real pleasure to shoot. One of them is what I tote when I want to make a political statement when carrying openly.