I just saw some lovely rag curls someone did and they took photos of and I noticed that the curls at the sides were tighter than at the back of her head.

This is something I always had when I curled my hair. Now I have natural curl and the same thing has happened: I have spiral curls at the side, and as you go around from either side of my head, I have then waves, then a dead straight section RIGHT in the back. And yes, that's the hardest section to add curl to (not that I have in the past 10 years )

So, I'm curious to know for those who have waves, curls and who use rag curlers or other methods of curling, if you notice the same thing?