Excellent analysis Trouts2.
I've never had the need to crack open the auger gear cases but you certainly can see how the more robust gears differ from the lesser makes. Some of those gears look so small, you wouldn't think they could run a can opener. It's always good to have pics to assist explaining such differences. I know it takes more time and effort to put the pics in but it's appreciated. Thanks for your commitment to the forum.