Gus, I basically put one layer of sinew down. It is about 4 or 5 backstraps worth. I did fill in a few thin or bare spots this morning. After it dries, in about a month, I'll take it off the form and see if she needs more. I still have to reduce the draw weight. It was 50#@17" before adding the sinew. My goal is 40# to 50# at 26".