Get the slack out of the bar before you lift it. This not only prevents “yanking” – starting the pull with bent elbows – it also insures that you have tension in the lats and hamstrings, and helps you get your weight back.
Before you lift the weight, think: bend the bar. Use it as a counterbalance to get your body weight back and your chest up. Make the bar “click” against the plates before initiating the final pull.