Best Places to Add mod function calls

[Randymarsh9]

I like the idea of having all of my custom combat calculations stored in the same place, so I have been modifying mod_functions.cpp. I've noticed though that a significant number of the functions in that file aren't actually called anywhere. I know that I can modify attack.cpp and special_attacks.cpp to call into the functions myself, but I was wondering if someone had already found the right places to put those functions. If you want to make use of those mod functions, is there a list anywhere of the recommended place to add calls to them in the code?