I am not sure there is a real correct answer. Although the triad is considered central as a whole, places like Winston are very close to the mountains and obviously the furthermost western part of the triad. You also cannot draw a vertical line, as I know when people on the board speak of western NC, they are not speaking of CLT, especially south CLT. I do believe that when most people on here speak of western NC, they are including Winston and possibly even GSO. Once you get past Guilford though, I very much consider that central.