I don't know if this might be helpful. I've been studying this Orchestra template created by Christian Henson & Jake Jackson. It's reset my perspective on "bouncing" tracks. Now I don't write orchestral music, but I've taken these ideas about routing and template structure and adapted them to my needs. YMMV. Here, in this tutorial
I've bookmarked to the spot where they print stems for a short composition Christian has just written. It's been fascinating to learn about how orchestral scores for film and television are produced.