Who knows he didn't say. But it's kind of hard for me to believe that Bob Clearmountain's mastering would be that radically skewed depending on format or number of channels.
I happy that there's a least one dissenting opinion although I have no doubt that many will not be happy with the SQ of this set.
Just look at the vilification of Pepper & Giles Martin and even more so for 1.
Personally I think it has as much to do with shitty systems and set ups as not understanding the process and being ignorantly\overly critical.
Ok first...Clearmountain did the mix...not the mastering...that was Ludwig...but yes there will be complainers...there always is...but as long as I'm happy...that is all that maters to me