I have 16 revolvers tuned by Mr. Munden and zero, repeat zero, have had problem one! I had Bob setup a back up pair of main match revolvers and have never had to use them in 8 years.
Now that being said what criticism I have read about Munden always boils-down to personality issues. Bob is an A-type, no BS personality and some people are uncomfortable or intimidated by him. Some of these people retaliate by relating second or third hand denunciations of his gunsmithing. I have never known Bob not to stand behind his work and correct an error when one occurs, some even after another supposed gunsmith/trick-shooter has muddled them up. Names withheld to protect the alleged master gunsmith.
I, without reservation, recommend Bob Munden’s Option #1 and Option #2 revolver work.