I wouldn't give too much on these Newsound releases! I've got a Miles disc, and it has one track, "Mr. Lucky", listed as being from the fall '60 European tour (with Stitt, Kelly, Chambers, Cobb), but once it starts, there's a baritone sax and no tenor, and you soon suspect that this is the Donald Byrd/Pepper Adams band (no proof, however).
The "Live in Seattle" set is incredible, in my opinion! Love every minute of it (but ought to spin it far more often)! And definitively get the CD, as it has lots of material not on the LP set.
ubu