When looking at the specs it says that the wizard xl is 18mm at the 1st fret (wizard: 17, wizard ii: 19). So it's a bit thicker, I hadn't noticed that, but it was pretty comparable in playability to the Sl-1, but nowhere near the
paul gilbert model (with a wizard), but that's I guess all because the larger fret-distance, I haven't really got big hands so that bugged me a bit. I don't like 7-strings that much for the same reason. I liked the idea of the guitar a lot, it sure looked neat...