@Cam That video was the 1st completed course for that skier who likely wouldn't have rounded 1/2 those buoys without that level of help. I'm sure he was super excited to complete his 1st pass and was motivated to continue progression. I have seen numerous skiers new to course skiing that Jodi has helped get through the course for the 1st time (like the one in the video,) and continue and progress to the point they could get through with little to no help. Many of which skied in their 1st tournament in Joid's grass roots tournament with high quality tournament drivers. I've also sat in the boat watching Freek School and Siani Oliver with jodi driving a path that would make sure path happy (no coincidence, within the months before Siani made the podium at Moomba.)
Quoted from the comments in that video "it all part of our program to teach the angles, the rhythm, the timing and the confidence, now the skiers can make all the buoys in the course. Throughout the week, we will straighten the path and the skier knows they can make it and will continue to follow their same path now they have been there.
It's a proven learning process that cuts down the learning time by more than 50%. There is a method to it and it works the best out of any other way to reach the goal of running the course.
You first have to do whatever it takes to get the skier around the buoys and then straighten the boat out and alter the boat speed less and less. Otherwise it will take the skier far longer to figure it out and most loose interest before they complete the course. Trust me, Iv thought 1000's of skiers to learn the course in much less time this way and they go on to become great slalom course skiers. It a program Iv spent thirty years developing and had huge success with it."
I think interesting to note in the video is that as the skier is rounding the buoy the boat is almost back to center line. The weave is more to help the skier gain speed across course than it is give the skier more room to get out to the buoy.