Currently, when a project template is duplicated, planned expenses and budgeted items are not duplicated. They should be. Failing to duplicate all the template information means I have to reenter information and could (will eventually) make a mistake.
It is also common for large multi-phase projects to be broken into smaller pieces. To save time, I would usually create a duplicate project and delete irrelevant sections (for example civil work versus electrical work). The current project duplication process requires a lot of data reentry (again this may lead to opportunities for mistakes).