I purchased this recording (multiple times) specifically for the Mass. I first fell in love with this Mass when I was a teenager in high school and so, have had ample opportunity to listen to the various performances of this work through the years... yes, even back in the days of vinyl. I still have some vinyls of this and, if I were to have my pick, would wish for the King's College/David Willcocks version as it was produced on the vinyl (with that selection of accompanying pieces). I would not have chosen the Finzi/Bax works for this cd (although the performances are fine). Still, if the reason for the purchase of this cd is to have the finest recorded performance of the Mass in g minor at your listening disposal, this is the recording to pick up.
I strongly disagree with one of the other reviewers of this work. This Mass was meant to be sung by a boy's choir. The boys' treble sound gives it an ethereal quality that is both restrained and prayerful, pure and almost angelic. A mixed choir can certainly perform the work but the soprano, in particular, should be performed "sans vibrato" (or at least, greatly restraining the vibrato). Otherwise, it can be a rather jarring sound amidst the purity of the work (the Corydon/Best version has this problem as does the Hickox).
Another issue I have with other recordings deals with the tempo taken on the opening lines of the Sanctus, primarily. Many performances race through those measures (and to a lesser degree, others) as if one were trying to get through early lines of the movement and get to "the good part". By contrast, the Willcocks performance gives the sense of a sound coming from heaven, timeless and serene. No rush, yet not labored. David Willcocks and King's College have "captured" the mood of the liturgical moment and, in my opinion, have produced (by far!) the richest interpretation of Vaughan Williams' greatest a capella choral achievement. This is the finest performance of Vaughan Williams finest a capella work... at least of those available for public purchase. I highly recommend it.