When performing the Snatch High Pull the bar should travel to the bottom of the Sternum. Elbows should be higher than your wrists. Legs should be fully extended. The athlete should be attempting to bring the bar up to them and not their body down to the bar.
This exercise is great for emphasizing keeping the bar in close proximity to the body and full extension of the legs and upper torso. When this movement is practiced and developed the athlete will have better technique and a stronger Second Pull.