I have been roller setting my hair since the 5th grade and I am pretty good at it now. However, I have always used the roller with covers in my hair. I am beginning to notice that the covers my not be the best thing for my hair now, especially with all my new growth. Can someone give me some tips on how to secure the rollers in my hair without roller covers? I have tried pins and clips in the past but could never get them to secure the roller tight enough. Thanx in advance.