Sidewinder -- on my system, the Lloyd discs in particular are all noticeable improvements on the Collectables CDs. Some of these sessions (Soundtrack, for example), might not have been recorded well in the first place, so even with an "upgrade," they are okay at best.
The Collectables CDs are consistently poorly mastered, so I have welcomed these Japanese Warners as replacements, even if they aren't in the same league as the recent Japanese BNs and CTIs.
Thanks. So far only sampled the 'Svengali' but it sounds fine. I think I'll be picking up quite a few of these ! - sort of reminds me of the German Atlantic 'That's Jazz' series on vinyl back in the 70s (the ones with the trendy silver foil covers) when so much of this stuff was previously scarce over here. This series is even better though - some real obscurities (Fred Kaz?)
My 'Flowering of...' CD is an upgrade from an Atlantic cutout cassette picked up for 50p in about 1976. One of those cassettes with the solid plastic cases and paper cover.