Hey, I currently have Planet Waves Auto-Trim Tuning Machines on my Epi LP, and I really love them. You can check em out here: http://www.musiciansfriend.com/srs7/g=guitar/search/detail/base_pid/361451/ They make string changing very quick, have a high gear ratio, and hold tune great. I am soon going to be getting a Faded SG Special, and I would like to put them on it, but I'm worried that they will make the instrument too headstock heavy. Anyone have them on their SG or heard about doing this? Thanks.