I got up a little over 750 bales this weekend. However, the strings busted on a few. I suspect is what due to too much tension. Any folks out there familiar with air tensioners and what pressure do you generally run? Although a few still busted coming out of the chute, about 20-25 psi worked the best. Should I run it a little lower. I have another 6 acres or so to cut and bale. Thanks,