I'm temporarily converting a regular guitar into a slide guitar by using a metal extension nut (also called a nut riser, ha ha) which fits over the guitar's regular nut and raises the strings higher off the fingerboard. Problem is, the extension nut is asymmetrical: one side slopes gently, the other has a sheer drop like a cliff. Which side should face the fingerboard and which the tuning pegs? Logic tells me that the steeper side, the one that looks like a cliff, should go where the bigger drop-off is, i.e., the side that faces the tuning pegs. But logic doesn't always prevail in music, does it? Has anybody done this (successfully, I mean)?