I thought I read in Gus Russo's book The Outfit, that Giancana was caught on wire suggesting doing away with the ceremony Humphrey's said it gives the lower rank a meaning of being part of something and adds to the exclusivness of being a member of a secret society.
Russo's treatment of the taps was odd. He seemed to maintain that the Outfit was aware of most of the taps yet continued to meet in the same places to discuss things regardless. I never understood that.
