Well, all Miles titles I ordered are in and I have changed my position somewhat.
Some of the blu-spec2s use 2006 DSD mastering. Others use masterings from 2000 & 2001. There are clear differences in the choices Mark Wilder made for the Japanese market in the early 2000s and 2006, and in 2009 and later for the US/EU market. There is really not a bad disc among these blu-spec2s or in TCCAC, but in some cases I do have a clear preference.
The most unexpected are the 2006 remasters which are very much toned down in the highs and less loud compared to Wilder's late nineties/early 2000s work. So much so, that by 2009s TCCAC the highs seem less rolled off than in 2006. The E.S.P. blu-spec2 is the one 2006 DSD remaster among the titles I bought, but I also listened to a FLAC rip on CD-R of the 2006 DSD remaster of Someday My Prince Will Come.
The 2006 DSD of Wilder's Bitches Brew remix I listened to (FLAC rip) is much less loud than the blu-spec2 (2000 remaster) and also the 2009 40th Anniversary. (TCCAC uses the original mix.)
Then there is the case of the superb MFSL hybrid SACDs which are all winners, some using quite differing original mixes.
thnx for sharing your impressions - could you be a little more specific reg your listening experiences reg Miles Smiles, Sorcerer and Nefertiti (aka masters used - are these the 20Bit Mark Wilder remasters featured in
Miles Davis Quintet 1965-'68: The Complete Columbia Studio Recordings
and loudness etc) ?