The areas that you got thinned out will be thin. The new hair that is growing out from the roots will be naturally your new hair. From experience my roots r thicker but what I did cut my hair in really nice layers and thinned it out. When it grows out more I'll have more volume on top but my hair heavy n thick so in time it will weigh itself down. Everybody has different hair. Test and see-even as a beautician suggests on products can help too.