It forces me to carefully track satiety anyway. I have to carefully make sure I never eat a pie that will be partial to avoid dropping stacks of pie on the ground and losing them. Nine times out of ten when I do end up with a partial piece I just throw it on the ground anyway. By the time I'm making pies I'm not worried about the ingredients that go into a single slice. The problem I'm worried about is losing 17 slices in the wilderness while I'm exploring because of the way the game handles partial pie and a full inventory.