Larry, I understand a few extra shells may be required. But some people just abuse it. You do not need five boxes to shoot 100 targets. I have seen shooters shoot a full box on a station and then go on to the next station and keep on shooting.
I know the KY club was having an extreme problem with shooters abusing a few extra shells. Mostly it was regulars who felt they were entitled to a few extra free birds. Their best course is the Blue course, their ridge line course and it is by card only instead of the honor system. It suffers about a third less waste. Waste is broken birds, extra view pairs and extra targets shot. If I owned them all courses would be by pre paid card type system.