I purchased Colorwash Bargello Quilts by Beth Ann Williams at a yard sale for $4 and have been reading it, and the method you describe is how it is presented in that book too. You sew all the strips together then sew the last strip to the first strip to form a tube and then cut the tube into strips and then undo the seam at different places in the various tube strips and sew them back together. None of the patterns in her book is as complicated as the one you have chosen though! I have decided to try a little doll quilt first to get the hang of it before I try anything more ambitious. My strips are cut and I am sewing them together, but they are starting to curve, instead of staying straight. The author recommends sewing the strips in pairs first and then the pairs together etc to prevent that! Should have reread the instructions before starting!!! Someone else told me to sew the strips first from top to bottom and then the next strip from bottom to top to keep things straight, BUT I bet you know all this already, because just now I am remembering a picture you posted quite awhile back of all your cut strips hanging on a ladder!! Good Luck with your bargello and don't forget to update us with pics!