Here is my two cents worth - I am doing a GMFG now and I accidently pulled one of papers out before sewing the last side to another hexie - what a pain in the #$#@ it was to sew without the paper in it - so don't remove the paper untill all 6 sides are attached. I remove them and just leave one row with paper. Some people use a hole punch in the middle of each piece of paper so you can pull it out with a crochet hook and use again.