Listened to the Andrew!!! and Compulsion SHM CDs and compared them with the US CD reissues. Of the two sessions Andrew!!! is the easier listen. It's a good recording, and the 2005 McMaster Connoisseur sounds good. The SHM ups the ante in terms of smoothness, refinement and subtle detail. It's also mastered at a higher level but doesn't sound less dynamic. Compulsion is way more avant-garde and thick (2 bass, 2 percussion). The piano sounds very distant relative to the horns, drums and percussion, and Hill plays a lot of clangy, dissonant chords. Van Gelder was of course not known for flattering or even pleasant piano sound. Modern recordings (using stereo micing) sound way better. The SHM is an improvement over the 2007 RVG in ways similar to Andrew!!!, and makes for a more enjoyable listen. These (flat?) 24/192 remasters must be reducing the noise floor to allow more detail and overtones through, and they are noticeably cleaner (lower distortion) as well (at least partly the result I would guess of better a/d and sample-rate converters), but I think you'd need to have an audiophile system to really appreciate the difference, unlike with PoD, where it's like night and day. It must be said though that the Japanese 24 bit remaster of PoD does not have the same palpable clarity and presence as these SHMs, and the higher hiss level is likely the result of the Japanese master being a generation or two away from the US master. So it's really too bad that Hill's masterpiece wasn't given the 24/192 SHM treatment.