I find the topic terribly interesting as well. When I was relaxed the hairdressers always said I had different textures on my head but man you just don't really know till you go natural and then it's like
what in the heck?!
Do you guys also notice thickness differences? My crown which is more wavy and grows the quickest is thick, the twists there are the business. Anyway, my nape which is 4a/b and grows the slowest turns out to be fine, my twists there aren't wimpy but nowhere near as thick and bouncy as my crown. I'm texturized now but I can still see and feel the difference. I sometimes wonder if the textures have any meaning or if they reflect our personalities or struggles or what. Am I getting too deep?
Anyway, it is an interesting topic, indeed.