A Project file will save a lot of data in an individual tool and its subtools, it would be more file and all their subtools, as a tool, and load other settings, and even an necessary is enabled.
Even quicker is QuickSave which is at the top of the ZBrush window on the right. Which version is the best workflow method to save your work as you are working on a model? A Project file will save a lot of data in addition to the geometry worked on�every loaded tool in the file and all their subtools, custom materials or lighting amongst other settings, and even an undo history if that option is enabled. Thors Nuts� hehehehe� the nuts of gods. It depends on the needs of your project.
