I solved my gripping problems with my J-frame by putting Pachmayr Gripper grips on it. Great big improvement in my ability to shoot accurately one-handed, especially DA. One-handed shooting is major requirement for me. Given the way I carry the gun concealed, the larger grips make little difference in hiding it but, the much more repeatable, secure gripping is a BIG improvement. This gun is both a trail gun and a SD gun. Accurate shooting with 357 mag loads, sometimes at many 10s of meters at small targets is a major requirement.
Recently carried this gun on a two-week trip and never had a problem with comfort or people suspecting I was armed -- noone with me knew I was carrying. Never had reason to use it or even draw it.
Those really cute little rosewood grips than came on my M60 were rather hopeless for anything other than contact shooting big guys. Set of Unkle Mike's rubber grips were much better but I always shot a few to several inches low at near distances (a few meters) in DA. The rather slender Pachmayr Gripper grips fill the bill.
Niklas