woh, so you mean you can tune your guitar in D or C# without having to fuck with the bloody springs on the trem?? and without having a banana shaped neck??
are these things sold seperatly and can you replace a floyd for a kahler without extra drilling and stuff?

yeah about the floyds, most are fake, like on ibanez etc... I didn't ever try a real one I think.. well, maybe I wouldn't even notice the diffrence, I'm a bassplayer not a real guitarplayer.. but guitar is also fun.