All of my bundles are a strong 1 CU FT of splits. I will wrap around 3 times, insert my tag with the required information by the state of Iowa and then wrap one more time. So I am wrapping my bundles 4 times and I always come in somewhere around 120 bundles. Are you using a 1500' roll of shrink wrap? If so do you only wrap 3 times. Are you doing smaller bundles then 1 CU FT? You must be doing something right if you can squeeze 150 out of a roll of shrink wrap.I can do about 45 bundles an hour. The stretch wrap is about $20 a roll and does 140-150 bundles.