This one is gonna be more for the model artists and focused on splitting and layering your hair to set up your rigger for success!
When creating hair layers on the PSD, most people will typically split it into a front group, side group, and back group. This is different from strands or bangs being separated; I'm talking about the actual "layering" of these parts.
Now depending on the hairstyle and the rigging's range of motion, this works fine. However there is a subtle issue once we begin to turn the head...