Now the strange thing about linen wound on a bobbin is that it want to spring off. When I took my class at John C. Campbell Folk School they showed me a neat little trick. You wind your bobbin, then get a wet wash rag, wring it out, and then wrap it around your bobbin. You want the linen moist, not wet. Of course one draw-back is that if you have to un-weave, it's not real easy. And don't try to wind you bobbin to full.