In feeding deer, any excess would mean a person has accomplished their goal in what they set out to do. If certain plants-grains have been browsed to the max, the goal in successful feeding has not been accomplished. It's a trial and error effort, having to feel out a specialized area due to deer denisity changes per any given year. Experiencing waste is always going to be common, if your goal has been reached. Some years, I feel success, others, not. At least I feel as though my part of giving back to what has been taken, is heading in the right direction.