Well, growing hair, I ain't all that good at-cutting it (and razoring it) I can do. I've done all my haircuts: layers, bangs, asymetrical, etc. And the razoring was the hardest to learn! I messed up twice actually using a razor on my hair. But I have it all down now. It's pretty hard to get to those back ends, mostly because they're in the back and because we tend to pull our hair in the back to see it better, and that tension causes the razor to work a little too well. Just a warning to all those getting into the DIY cutting.