I've added a new YouTube video, demonstrating how to replace the thinner paper from a Moleskine sketchbook for the Sketchbook Project, Limited Edition, with #140 Fabriano Artistico watercolor paper. This is necessary for me because I often do ink & wash or watercolor sketches in my sketchbook and I need the proper absorbency of the real watercolor paper.
I bind it accordion style so that more paper can fit without stacking too thickly into the binding.
This also gives me the option of several format choices, running across more than one fold at a time.
I have another video here, showing exactly how to sew the paper onto the cover and the materials used.