Funny -- I just posted a question just a little while ago regarding the prov. cast on using crochet chains. Well, I tried again and again and finally was able to easily pull out the waste yarn. That seemed to be my problem. My instructions were to begin with crochet hook same size as knitting needle and chain the number of stitches required -- then, turn chain over and begin to knit into each of the bumps (which are visible once you turn the chain over) -- So, you are actually knitting stitches from the crocheted chain (not from the needle at this point). Well, I did more testing and finally figured it out. I think it will work out well now. The pattern has a lace type edging to be added once the scarf/shawl is completed and stitches are cast off and once the cast on stitches have been put onto needle again and waste yarn removed.