agree to disagree lol. I also think 18 is pushing it for test, but to each his own!
FINAL UPDATE - NO GO FOR ME!!
Unfortunately, the experiment didn't pan out as hoped. I had no hair in those spots of my sideburns in the beginning, and rogaine gave me spots, but very very very small/thin/unnoticable. I got the peach fuzz, that turned into thin black/brown hairs, but never developed past that point. I actually just gave up on it about a month ago, but to be honest, I had become lax in my applications for a bit prior to that (basically, there was always something new - peach fuzz, peach fuzz turning darker, more hairs coming out, but then it just stopped growing, and after a while of that, I started doing just 1 daily application. Of course, that didn't help kick start it or anything, I remained at once daily applications for a bit, nothing changed over that time period, then I stopped and threw out the remainder of my bottle (given the small areas I was doing, 1 bottle lasted me the entire experiment).
So, for me anyways, it didn't seem to pan out. I may've, had I kept doing 2X daily, eventually seen a resurgence in progress, and eventually got what I wanted. But, didn't end like that, I was on doing it religiously at 2X daily forever, and then it finally stopped progressing, I kept it at 2X daily still, and after a while of that, w/o progress, I dropped to 1X daily, then off. Final results are thin, dark hairs in tiny spots where I wanted it. Basically, I wanted to connect where my hair ends to where my (extremely small) sideburn patches started. I did succeed in shortening the gap, but not by much - the hair that came in basically expanded what I had on my sideburns, it didn't just start adding uniformly on the square I was applying it in.
Too bad I didn't have better results!