I had a 29 no dash. I sold it the chambers were slightly bulged (I didn't do it). I have a new 629 and I really like it. I prefer S&W revolvers over any other manufacturers. I do have a RSB that is quite accurate. I believe the SBH might be able to handle higher pressures, though I'm not in that frame of mind any more with my 44's.
My choice would be the S&W, due partially to handling properties.