I'm having the same problem. Have to trim my ears more often than what is on top. In the old movie "Sargent York" the main character was very interested in obtaining some "bottom ground" because it was more productive. I guess the same is true of our heads. The lower you go the better the soil. My wife is constantly wanting to "fix" my eyebrows. She says I'm beginning to look like Andy Rooney. Oh, well. At least most of it is turning white instead of leaving and/or relocating.