If you get all rounds to fire and your double action pull is smooth between 8 and 9 lbs leave it alone.

If you must play with your action then back out the stain screw a 1/4 turn at a time till you no longer get good primer hits with all rounds firing.Then back it in 1 full turn.

I've done the Wolff Spring thing on a few Smith revolver and always go back to the factory springs and full strain on the mainspring.

First and foremost the revolver must be able to fire all rounds consistently.Anything less is a fail.

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NEVER GIVE UP YOUR GUN