Currently available new 29 & 629 models have the benefit of
all of the endurance enhancements. S&W will tell you - they are capable of a long life of shooting .44 Magnum ammo as long as you buy ammo which
only meets the SAAMI specification for .44 Magnum. That means, your buddy's homebrew hot loads and commercial loads stating 'Ruger/TC Only' should be avoided. Anything commercially made with the label '.44 Magnum' which you bought in a WallyWorld or sporting goods store would be fine.
Now, shooting .44 Specials - or even the shorter .44 Russians - is fine - just brush the chambers well before chambering Magnum ammo. If you shoot the Specials mainly, just about any wood grip is fine. My 6" below has the Ahrends RB Square Conversion, with finger grooves, in cocobolo. My 4" below it sports their RB Rounded, non f.g., and is fine with lite loads. The shorter lug on the 4" & 6" make them look more traditional to me - and they 'point' more easily, too, as there is less weight 'out front'. This probably does effect muzzle rise, but not much with Specials - or my mild loads in Magnum cases (I reload.).
Several years ago, I had a young fellow tell me - in person - how he shot his old 29 loose with boxed ammo - hot ammo. He had bought it from another fellow - who I remembered selling his 29 years ago after it shot loose with hot homebrews. Yep, same gun - one gun - two legends - neither with commercial .44 Magnum spec ammo! If history is important, early Ruger .44 Magnum Redhawks launched their barrels! It took a new .44 Magnum - the Super Redhawk - to regain customer faith. Ruger fixed the manufacturing fault and modern Redhawks should be fine - if you like them (My .45 Colt Redhawk was enough for me.).
The SRH I had, in .454 Casull, recoilled less than a 29 I shot eons ago - and at over twice the .44's kinetic energy. I was blistered after three .44 Magnums - it was the lacquered wood target grips and lower hold they required. The SRH was padded - and higher - better recoil control. For the same recoil control in a 629, or any K,L,N, or X-frame with the round butt they currently use (RB), try the Hogue .500 Magnum rubber grips - they pad the backstrap and allow a higher hold. My 6" 629 sports them below, along with a 2x28mm Weaver H2 handgun scope on a Weigand SS rail. Modern S&Ws are predrilled for a scope - just remove the rear sight (One screw!). This is a great main hunting handgun setup. For backup to a rifle, consider the 4" 629 - with that .500 Magnum grip - available from S&W Accessories.
Obviously, I like SS over blued. Others have mentioned the reasons. I did start wit Rugers - lots of Rugers. My metamorhosis to all S&W started over seven years ago. I have fewer revolvers now - almost all bought new - but I have what I want - and like - and use. I would imagine I could get some of my investment back one day - if my son and I take up stamp collecting. For now, I will enjoy them.
Stainz