You don't need to use 360 wave grease. All you need is a moisturizer and a grease like olive grease. An Ace brush or Dianne a Durag or Wave cap.
You need to brush in 360 angle which is all around, the curls will show after a couple weeks.
It depends on if you have good hair that is naturally curly or straight hair. If you have natural curly it might come as soon you take the Durag off, or when you just brush it. If you have straight hair or peesy is the same, it will take two weeks or even more just to get them.