I use the Vario 2C so that I can have 2 booklets per page and see the front and back. I add a standard 8.5x11 coloured copy paper in behind so that I can print the catalogue number next to each booklet. See the attached image.
If you wanted to see front, back and inside you would need to use the 1C and unfold the booklet, which limits you to 1 booklet per page.
