If you buy a Ruger, or a Smith', you can get .002" shimstock from Power Custom -- via Midway USA -- to tighten up any cylinder endshake that you believe is excessive. I've done it with one double-action that had approx' .0035" endshake and now have a pretty tight revolver. Of course, .0035" is not much to begin with! I just wanted it tighter was all, to reduce the revolvers stress from recoil just that much more.
With a single-action Ruger, which would be my choice of a revolver even over the Smith' 629 Classic, you can install a Belt Mountain base pin to tighten up the cylinder wobble a noticeable bit. And I've done that with a 5 1/2" SBH that I think is one of the finest pieces ever made. If the trigger on any of these firearms is too heavy then Wolff gunsprings can give you some lighter springs for your piece. Just don't lighten the hammer too much......making it unreliable. Lighten it a bit and you'll see a difference.
Good shooting,
SS'