I use a Reckoning with guide lid too, with a Sherman (as opposed to a grab-it). Used in tandem, they do work good for cinching down skulls with antlers/horns.
I like the meat as close to my back as possible, which is why I use the shelf, or if I do shove it into the main bag I make sure it is as close to the frame as possible. Nothing is worse than the ape swinging on your back.
