Peter: KitchenAid only offeres a thrid rack on the S Series(AKA Superba). And for the cabrio, it only fills with what it "thinks" is necessary for water, so if its only a small load it uses very little water, or like the large load today it used more water. It saves ALOT of water in the long run. Where as most people set it to large and only put a medium load in and waste alot of water, this picks it for you!