I use a '61 SG Reissue set up specifically for slide with slightly higher action but .010 strings. I have gone through a lot of slides but finally landed on the Rock Slide (glass and metal). Flat radius is much better for slide and of course an SG has the easiest fret access. Keep in mind if you have a guitar for 'slide only' the fretboard really doesn't come into play. You can buy an inexpensive Epi SG and put decent pickups in and it will be as good as the Gibson.