I would prefer the pre lock models. Be sure you get one after the "endurance" upgrade. Not sure which "dash" model that was. Having said that I carried a 629-8 for several years, very heavy on a belt holster. Anything over 4" will be a hassle to sit down with in a belt holster. I finally settled on a rather rare S&W, the 357PD which is a 41 Mag scandium titanium like the 329PD 44 Mag. Not near as nasty with full house loads. One deer season I even forgot it was there and walked into a Walmart in Nebraska and nobody said anything. Always knew that the 629 was there, listing to one side..
