Msgr. Harbert notes that
A good deal has been made on this blog of the involvement of Mgr James Moroney with the 2011 Vox Clara text, but the situation isn’t as simple as some people seem to imagine. If you look at http://www.romanmissal.us/ you will find interviews with several Vox Clara members, and Mgr Moroney reciting new versions of the Eucharistic Prayers. But the text he utters differs in several places from that given on the USCCB website at http://www.usccb.org/romanmissal/order-of-mass.pdf.
I have spotted seven such discrepancies in Eucharistic Prayer 2 alone. Which is the approved text? . . . These aren’t just slips of the tongue. For instance, in the opening paragraph of Eucharistic Prayer 3, where the printed text reads “pure”, Mgr M says “perfect”.
Perhaps it is necessary to distinguish two versions, 2011a and 2011b.