Have used Wolff's and they are good, also like the L frames (yea, J, K and N, too!). But, have done as well by using factory springs and tuning ... at times with a grinder or cutter! Was taught by a master I will add. Jerry Kuhnhausen's Teh S&W Revolver, A Shop Manual is good. Have an 8 1/2 by 11 manual (about 90 pages) I like better as it gets to the nitty-gritty of where to and where not to stone/file/cut, but front part is missing and I do not have publisher data.
