Just called S&W and ordered a couple of 15-22 firing pins, firing pin springs, and recoil springs. The firing pin part number has changed will post when I get my invoice. They were most helpful. Also ordered some K frame internal firing pins for $3.49 each along with the springs.

I have experienced light primer strikes, so will experiment with cutting the firing pin spring about an 1/8 to 3/16 and see if that helps.