What I didn't realize about baldness before I understood it was happening to me was the extent of thinning that will occur even before a bald spot will open up. Back then I figured hair loss was local to that area and the surrounding hair was strong and dense. I can see it much more readily now when someone younger has coverage but is starting to lose their hair.
Well, my hairline's slowly heading towards 3 territory, so I'm considering it for that. However, I've posted one other time (on hairlosstalk) and the unanimous opinion was that I had a nw7 pattern. Definitely appreciate the feedback so far though.