True that the camera is not at the same point as the judges Doc, but if the camera is not moved during a particular maneuver, the tops, bottoms, sides, and intersections can be easily observed for tracking and consistancy. such as walking the loops from left to right or visa-versa (not tracking). With the camera off from directly across the circle from the maneuver one cannot "accurately" get a good view of the shape, so he would have to use good judgement as a judge would if the flier had did the maneuver slightly left or right from directly across from the judges.
Watch some of the fliers again and place your cursor on the point of the first verticle point of the horizontal eight and leave it there and see if the plane hits that point on the second, third, fourth and fifth passes of that point.
Same type of checking can be used on the loops at the sides and top. Intresting little check to use. Too bad that the judges can't be afforded the time to do that. I think they do a beautiful job under very trying conditions. I for one do NOT envy them in doing their job.
Bigiron