I put in one of the Apex spring kits in my 642 a few months ago. I've shot mine quite a bit recently and it is much easier and more enjoyable to shoot now. Last Sunday I went shooting with my BIL and I was actually more accurate with the 642 than I was with my Glock 26 and that's saying something for me. The J frame revolver already points well for me, and now the trigger is much easier to pull, making the shot break much more controllable.