Which of these statements is WRONG about backing a heavy vehicle?

Backing Safely

[...] Back and Turn Toward the Driver's Side. Back to the driver's side so you can see better. Backing toward the right side is very dangerous because you can't see as well. If you back and turn toward the driver's side, you can watch the rear of your vehicle by looking out the side window. Use driverside backing--even if it means going around the block to put your vehicle in this position. The added safety is worth it.
Use a Helper. Use a helper when you can. There are blind spots you can't see. That's why a helper is important. The helper should stand near the back of your vehicle where you can see the helper. Before you begin backing, work out a set of hand signals that you both understand. Agree on a signal for "stop."
[CDL DRIVER MANUAL FINAL]