Finishing Up on How to Create a Defined Center Part when Ventilating

This is how I define the center part, I use thread to mark where I would like the part to be.  Then I ventilate normally with medium density until I began to close up the part.  Closing the part must be done with single strands.  This is because it should look like a natural part without looking too dense, course or bulky.  It should actually look like a natural scalp.