Sealed Deck: rules change (paper only)

Starting with Grand Prix Sydney and Grand Prix Madison the procedures for opening a Sealed Deck pool are as follows:

A player (A) opens booster packs and in the very same time the player (B) on the other side of the table observes this. Then, the player (B) opens his booster packs and player (A) watches it. Afterwards, players register each other’s pools and pass cards back, meaning the cards you orignially opened are yours and it is your sealed deck pool now. Rest remains as normal.