Is there any way to predict the outcome of a buzz?

[redy]

If you have a week or 2 weeks vacation
Buzz it using a # 2 guard
If you like it , keep it
If not, in two weeks it will grow back and no one will know and difference

At first you will get comments ( from the idiots ) but eventually everyone , including yourself , will get used to it/

Yeah, I'm just worried to what extent my shed will actually show. Also, it's currently a lot longer than 2 weeks growth, I haven'y really touched my hairline since september and have been buzzing the sides and maintaining the crown, which is where I have much thicker hair than my hairline.