A skier signals that he is ready to go When should the boat operator take off in a straight line?

The boat operator should take off in a straight line only after the skier has signaled that they are ready by raising a hand or giving a specific signal. It's crucial to ensure that the skier is in a safe position and has a firm grip on the tow rope before acceleration. Once the signal is given, the operator should smoothly accelerate to avoid jerking the skier or causing an accident.