If you are still looking, Part 2 of my guide covers a lot of functions you can use to create the “endless” leveling you talked about. As well as talking a bit about the differences between the functions and why or why not to choose specific types of functions. Even though both halves contribute to the generalized “scripting” of the system the second heavily focuses on different level functions, and I even included graphs! If you have any questions I’d be more than happy to help out or answer what I can.
(Sorry accidentally replied here instead of the main topic.)