OK, moving the post in the arrow direction lowers the post, and moves the shot up.  Now moving the post in the opposite direction of the arrow will raise the post, which make the sights look higher and lowers the POI

So wither you understand all of the above or not, it doesn't matter.  Bottom line is you will set the front post once, and from there, forget all about adjusting it every again.  Trying to clean up a arrow that points in the opposite direction of what the post/screw is going to move is really more for the hillbillies that may need the extra guide'g that the drill instructor can't seem to pound into there heads during boot camp.

Simply, shoot the rifle and see where the shot hits, then move the post up/down to the get the tip of the front sight post to where the shot hits.  If the shot impact is high, unscrew the post counter clock wise/up to raise the post.  If the shot is low, then screw the post clockwise/down to lower the post to make the sights look at the point that the barrel is shooting.

It's really as simple as just moving the tip of the post to the where the bullet is striking, and the arrow guide is a total waste, and no reason to clean up and make it more visible (unless you're a hillbilly, then there is the option of filling in with one of your bright crayons)