I own a 29-3, and the lack of P&R means absolutely zero to me as neither performs any worthwhile purpose. The main shortcoming is the loss of cylinder lockup when firing full Magnum loads. But I came up with a home-made internal modification to the cylinder stop that helps to overcome that issue. The later "Endurance Package" was S&W's effort to cure that design problem. Nearly all of my shooting is with less than full power handloads, and I have never had any cylinder unlocking problems in firing them, before or after my modification. I am not in any way a fan of the muzzle blast and recoil of full loads and never plan to take my 29-3 revolver to shoot bears in Alaska.