Never quite trusted the Graph Tech bridge that came on my old 'graintop' when I bought it used. The saddles, no matter what graphite-infused jargon you use, look and feel like black plastic. Doesn't seem like a great contact point for the strings. Sunday, I finally got around to switching it out for something more traditional. Had a nice ABR with brass saddles in the parts box for at least two years, so I just drilled the post holes out to 4.5mm and it fit nice and flush on the Nashville posts. The guitar is immediately louder and more open. Looks sexy, too. Note: This isn't a conversion, I know I'm not getting the benefit of an ABR with direct body mounted posts etc. It's about getting rid of those String Saver saddles for something made out of metal.