"Throwing the head out" is a very common mistake that does not add any technical or presentational value to this skill.
Open-tuck and layout yurchenkos to progressively elevated mats are good drills. The gymnast can add open-tuck twists to the feet and eventually to the back. Gymnasts should not attempt the second somersault until they can consistently land on their back on an elevated surface.
Many horizontal or uneven bars basic skills show a cleaner body line when performed with a neutral head while some other skills are executed better when the gymnasts maintain visual contact with the bar as is the case with releases such as gingers and kollmans.