Two feeders on platforms 3-4 metres apart, feeding alternately for a blocker who cross steps to block.
Working on good form and not drifting when jumping, penetrating the net with hands and blocking the ball. The feeders should feed at the blockers pace when starting and increase pressure as blockers become more competent.
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.