Seriously, I would not do this kind of procedure or laser. If going bald is in your DNA it will happen. But everyone one is different in terms of how fast that proceeds or how far. In my case it took about 10 years from thinning at the temples to thinning on the top and back of the head. 20 years later, I am not slick bald but it's pretty thin. So if you like the sly look, don't be impatient with your genetics. It is pretty acceptable these days to shave a full head of hair these days.
On another website I used to be a part of, I know of a fellow, who was so obsessed that he went through pain by tweezing, then he had laser treatments on his head. He said it was quite painful. I would encourage you to save yourself money and pain and just shave. But it is your head, Just my 2 cents worth!