Final answer:
To set flat pincurls, one should usually start at the top of the head; this provides a foundational layer for the style and allows for consistent spacing and direction of the curls.
Step-by-step explanation:
When setting flat pincurls, it's often recommended to begin at the top of the head.
This method allows you to work systematically from the top down, ensuring that the pincurls are evenly spaced and that the curl direction remains consistent.
The pincurls at the top of the head act as a foundation for the style, setting the direction and the flow of the hair, and those below are positioned in relation to the top layer. Starting at the top also helps with managing the rest of the hair and avoiding the disruption of curls that have already been set.