I am not sure why people are so bent on typing hair. Even if I am a 4a and you are 4a, products can react differently on our hair because porosity and other issues. Also, everything is pretty much visual ( fotkis, blogs, youtube) and you can always find someone with hair that is similiar looking if you are that pressed to find products that may work on you. And like someone said, what purpose does it serve outside of boards? There are not many salons and BSS that subscribe to the system...