Yup, upside down
This cleans the bottom rack at least as well as a bow tie mobile maid does. I think the mobile maid does a better job on the upper rack and niblets without all the theater about loading it precisely. All in all, though, the fast turnaround, the very hot water and just the solid feeling of the dishwasher makes me happy. As to how it works with modern phosphate free detergents, interestingly enough, it does a very good job with a tablespoon of TSP added.
This series still had the pre-wash, rinse, wash and double final rinse.