I have the swingwing pegs on my FXSTC. They work really well for me. I would think for those who have a rattle, they may not have tightened the pitch adjustment enough. I don't think you can safely open or close them on the fly because they have a release button that has to be grabbed on the bottom and top side of the peg before it can be moved. I also have the matching pegs for the rear. Had them on the bike about 3 months now, look good too!!