@Horton said it.. Also, a 'review judge' is not an appointed judge, or is his/her score used to gain a score. It ultimately comes down to the cheif judges decision if the event judges can not make a decision. see world rule 14:11
This not an issue of integrity or manipulation, its a problem with the rules and the constraints that are constantly increasing on the sport.
I have been a technical controller at moomba for 8 years. I dont need to tell any follower of our sport there has been a number of contentious issues at moomba in recent years. Some of these are due to unavoidable aspects of the site. For example; how often do pro skiers train in a situation where you need to pull out for your gates as the boat is straightening, zero off is engaging, pulling out into a strong head current while dodging plastic bottles? It causes issues.
This year, we decided to not use video from the boat, therefore not being an R class event. Instead, we used 5 senior, world class judges on each side of the lake. Anyone remember the Billy Susi incident? Having a high quality video feed from the boat is near impossible at a place like moomba or callaway, short of a few hundred thousand dollars worth of professional equipment. That leaves us with commercial grade equipment. Add in interference from the city, 100,000 people with electronic devices in the visible area, it all impacts on quality of video transmission. In years gone past, we have turned on receivers and watched security camera footage in the city. It is a noisy area for transmitted signals. At moomba, the direction of the river and the sun causes significant issues in the afternoon as the sun is almost directly behind the skier around 1-3-5 going away from the city. Put all these factors together and it makes it difficult for a judge to make a decision on whether or not a skier went around a bit of rubber a few inches above the water, while the skier is probably travelling 40+mph when you need it most. This review capability is supposed to clarify errors beyond reasonable doubt. Unfortunately the use of boat video, in the way the rules are written, often only causes more confusion. This situation is just another example of it.
As it stands, there is too much unknown. Did the boat judge call 6 and without knowing otherwise, not hearing the radio bring freddy back at 41? Was the score always 5 and the person in charge of the scoreboard put up 3 at 41? Was the boat told to bring Nate on? The public dont know when, where or how the scores swapped to and from 5 at 39 to 3 at 41.
Dont blame the judges, blame the complexity of the judging rules and system that they are bound by.