Hi NoHairNoFair,
You can put arrows on your template to mark the ventilation (direction) of the hair on the hair system. The factory will follow that. There are some people that don't like the natural direction of their hair (when they had it). Some people had hair that was naturally directed backward or forward and want to change it with a hair system. As for crowns, most people go with a crown. We have about 5% that request 'no crown.' It depends on the person and the hair style that they chose.
Regards,
John