I am still planning on doing a tutorial/photo blog of wheat paste method to make book cloth. I'm sorry I flaked. Life sort of exploded and I have to do a last minute trip 800+ miles each way. Basically the trick is to make sure grain is aligned, that the wheat paste is cooled completely before pasting out the thin Japanese paper (the stuff used for sumi painting is good) and to paste out from the center of the paper. I'll do a complete post on the method I was taught soon. Sorry!