I just want let you know that I'm in the same situation as you. Haven't ordered yet, but I also have a good amount of hair left which I have to shave all off. And this is my biggest concern...If I'd be already NW4 or 5 it would probably be much easier. I don't even know how I will look like when I shave all that hair off and let just the sides stand before I put the system on lol