Recognize that this thing is not perfect. I definitely found easier skill up paths (for me anyway) simply by browsing the trivial list and picking a path that made sense.
Certainly though, the various TS guides on EQTraders have been quite helpful. It all depends on your style and maybe what you already have access to.
Good luck, and feel free to send me a tell if you have any Q's, though there are several people in channel who have been full TS-300's for a long time.