I found that real tight wrapped square bales, them green heavy ones that start at 80 pounds and go up, one could use two hooks. Normally with our little round bales, only one was needed. I picked up all our hooks when things shifted to the big bales, got them in the barn. What was someone saying about stacking hay to the roof of the barn, on a hot day? Think it got close to 130 degrees up there in the afternoon, and I wonder what is wrong with me now.