When you sew you 6 strips together, make sure your dark strip is the first strip you sew. Then after you sew the 6 strips into a tube, you cut six 2 1/2" segments. Then you pick out the stitching between 2 of the fabrics in each tube. S tart thei by picking out between your dark strip color and the color next to it. Lay that strip out and then look at the last 2 colors at the bottom of the strip. Now take your next tube and pick out the stitching between the 2 colors --that are the last two colors in the strip you just did. You continue this process until you have picked out the stitching in all 6 tubes to open them back up to strips. Now when you lay your 6 strips out together to sew into the block, your dark color should be in the middle from upper left hand corner, and run diagonally through the middle and be the last block inthe last strip in the lower right hand corner. It is confusing. Someone in my quilt club demonstrated this recently and that is how I learned.