I have a question about this too, it may be because I need to grease it up or something, but I have an Ibenez Licenced Floyd Rose, Edge II I believe. My guitar is set up and INtonated perfectly for d standard but for some reason if I use the bar, or even pull up on my bridge, it goes back slightly flatter, meaning it doesn' go back all the way, but it doesn't do it when i push it sharpe, it goes back to normal tuning that way. ANy one have any idea how to solve this, I would really like to use the FR bridge, because that is why I got that guitar 5 years ago, and now that I know how to use it I can't.