Hello, everyone. Does anyone have a link to a comprehensive, accurate, current explanation of all the "rules" that apply to the various zone coverages? In particular, I'd like to know precisely when some of the zones convert to match, assuming all pre-play settings are left to default. 

The best I could find is here:

Flat Zones: https://medium.com/@HoldenMadden/madden-sunday-school-episode-2-flat-zones-4dcf80f73923?source=user_profile---------4----------------------------

Purple Zones: https://medium.com/@HoldenMadden/madden-sunday-school-episode-2-flat-zones-4dcf80f73923?source=user_profile---------4----------------------------

Hook Zones: https://medium.com/@HoldenMadden/madden-sunday-school-episode-4-hook-zones-ff55626db2da?source=user_profile---------2----------------------------

These articles are very helpful, but they're old. I assume the rules are still the same. Even so, is there something more current and accurate? Thanks!