Don't forget that you, as a skier, are the input to the driver. The skier, in large part, determines how well the driver does. Two ends of the spectrum:
1. easy to drive: loads later and progressively, has rhythm and stays connected out to the buoy
2. difficult to drive: loads early and inconsistently and comes off handle quickly/releasing line tension.
There's obviously many cases between these two extremes.
In the first case, you're letting your driver know where you are the entire pass and allows for smooth steering. In the second case, he's guessing and driving will be erratic.
In general, I gauge every pass I drive by how much my hand moves on the wheel. If you're searching with the wheel, it's not good for the skier. Whether it's you or the skier is for you to decide based on what it felt like in the seat of your pants.