Lower back is the pivot, press it into the mat.
From dish shape push heels down and chest up.
Lift toes and pull back of neck down.
Pull tummy in to maintain tension.
Squeeze elbows to ears.
World Rugby has reportedly conceded Aaron Smith's disallowed try in the World Cup final should have stood.
"It is not only useful for staff who are experienced but a valuable tool for those subject staff who have to take teams."
The variety of sessions across sports - sometimes we steal session ideas from one sport and use them with another.