I installed the 10# hammer spring and the 8# trigger return spring. The trigger pull is much easier and smoother feeling. I have put my own reloads through the revolver with no failure to fire yet using Winchester primers.

I ordered kits for each of my three different revolvers. They were in three individual packages with a a TK Custom label card in each. But for which guns were they? that information was not on the cards! fortunately I was able to figure it out.
arrived in the same package

I bought the springs to try in a 3" GP for EDC. I haven't decided which of the three weights I intend to settle on, but you can't go wrong with Wolff Springs.