Did this for a client, as his Mystery Ranch RATS pack had been modified and was missing a lid. It took a while to disassemble the RATS lid attachment area in order to get the FILBE lid to fit on there. Due to the large lid’s size, I modified it so that it would better envelope the RATS pack, and added two long straps where the original buckles were, and a new center buckle for the RATS strap. This gives it 3 lid straps, with 2 optional locations for the side lid straps to connect to. I will likely make two lash straps for the extra buckles on the bottom.