I put it there because of the way that I sight in my rifles (max point-blank-range, +/- 3"). Since most of my shots will be well within 200 yards, the bullet is going to be above the line-of-sight during most of that time, so the POI would actually be up to 3" above that mark depending on the range. If the shot were farther than 250 yards, I'd aim slightly higher to about the middle of the big circle, but I've never had a situation where that was necessary (yet).

Mike