You don't really "progress" in Norwood, that's how your hairline ends up.
I'm holding on to a thinning-in-front (and all ovre top) NW1 with decent success so far. No one would think I'm balding at this point, though I did thin out quite a bit for a while.
I fear my hairline won't hold here forever and will go to a deep NW2/3.
Started here as an early NW3V, but have moved down to a NW2 on 3 months of finasteride. I'll be a happy boy if I can keep it like this for the next 5 years, especially going into my 30's!
Me too, more likely close to 6 judging upon the remaining hair-covered area of my head.
Personally, I don't consider as "real baldness" anything up to NW2-3, if the vertex is intact. In my eyes this is just a mature hairline, a little bit advanced if we talk about NW3.