I disagree, the pouring of wine into chalices before Mass is not suggested by the 2002 Roman Missal. It is certainly not required by 2004 Instruction Redemptionis Sacramentum.
What Redemptionis Sacramentum has is:
“[106.] However, the pouring of the Blood of Christ after the consecration from one vessel to another is completely to be avoided, lest anything should happen that would be to the detriment of so great a mystery.”
So if several chalices are to be used the wine is poured into them before the consecration, not after.
The time when the wine is poured into the chalices is after the offertory procession, just have the bread is placed on the altar.
From the 2002 General Introduction to the Roman Missal (GIRM) which can be accessed from
romanrite.com/girm.html :
"141. At the altar the priest accepts the paten with the bread. With both hands he holds it slightly raised above the altar and says quietly, Benedictus es, Domine (Blessed are you, Lord). Then he places the paten with the bread on the corporal.
“142. After this, as the minister presents the cruets, the priest stands at the side of the altar and pours wine and a little water into the chalice, saying quietly, Per huius aquae (By the mystery of this water).”
“178. After the Prayer of the Faithful, while the priest remains at the chair, the deacon prepares the altar, assisted by the acolyte, but it is the deacon’s place to take care of the sacred vessels himself. He also assists the priest in receiving the people’s gifts. Next, he hands the priest the paten with the bread to be consecrated, pours wine and a little water into the chalice, saying quietly, Per huius aquae (By the mystery of this water), and after this presents the chalice to the priest. He may also carry out the preparation of the chalice at the credence table.”
These actions are clearly to take place during Mass, not before it. The complete prayer to be said inaudibly while the wine goes from the cruet to the chalice is: “By the mystery of this water and wine may we come to share in the divinity of Christ, who humbled himself to share in our humanity.”
In GIRM n. 118 it has a detailed list of what is to be prepared before Mass:
“On the credence table: the chalice, a corporal, a purificator, and, if appropriate, the pall; the paten and, if needed, ciboria; bread for the Communion of the priest who presides, the deacon, the ministers, and the people; cruets containing the wine and the water, unless all of these are presented by the faithful in procession at the Offertory;”
Again, the wine starts in the cruet, not in the chalice or chalices.