We raise BBWs and each year our Toms dress out at 50 - 60 lbs. We have tried a few different methods of processing but have found no real way of preventing bruising on the wings. They don't fit in our 100lb feed bags so we don't have that as an option to keep them contained. We hang the birds by their feet, necks stretched and remove the head in one swipe. We would like to be as humane as possible. Our females dress out at 40+ and last year they tore the feedbag open when thrashing about. This year our hens are about the same size and they are being sold. I'm particularly keen on making sure their wings are not bruised. Any ideas on how to prevent bruising?