After buying Jerry Miculek's "Trigger Job" DVD several years ago (and watching it several times) I have taken apart a couple S&W K and N-frames.
I bought the rebound slide spring tool, but really could have gotten along without it. But I'm kind of a tool junkie
I don't make it a habit, and I still have not tried his stoning techniques, but one day I will...just have to figure out which revolver will be the guinea pig.