Before the hand entry, bring the elbow to a high position.
Keep the elbow relaxed, stretch the armpit, and bring the arm forward.
When you swim with a faster tempo, insert your hand with your elbow in a lower position.
Slightly bend your elbow to keep your arm low.
When you swim in a swell, make a big stroke.
Use your shoulder blade to bring your whole arm forward with your arm partially straightened.