Crosby is Crosby although a slightly heftier Bing. These heftier weapons are used to hunt bigger animals such as kangaroos. Eighteenth-century "libelles" were much heftier volumes than their single (or half) sheet predecessors. Resilient wheels were used on most PCC cars with later heftier cousins known as "Super-Resilient". The heftier blade works well for splitting, stripping and cutting meat. The heftier design solidified visually the power performance embodied by the upgraded Macs.