Personally, I wouldn't pull it or roach it. If you're worried about it being thin, get some of the hair growth stuff that the people on here talk about. I've been meaning to pick some up for my girl; just keep forgetting to grab it when I go to town. She has a thin mane right now. The new growth is about 4 inches long and stands straight up. From the one side she looks like she has a mohawk.