I don't think the difference is normal. For the record, I do agree that the draft is a bit top-heavy as far as the ratings are concerned. I was merely pointing out that it is counterproductive to calculate the height in the star rating formula, in my opinion. It should be provide as some sort of a range in the second scouting report instead.
"I don't know half of you half as well as I should like; and I like less than half of you half as well as you deserve."