This may be irrelevant, considering SACD's apparent demise. OTOH, some may find it interesting.
I told my industry friend that I thought on my Allison Krause live SACD (A1 music + production quality), I thought the CD layer sounded better; that once I tuned into the difference (took a few times) it wasn't subtle at all.
I also told him my reaction to a particular recording done by a mutual acquaintance. I said the SACD had good air but lacked body/dimensionality to the instruments, was less real sounding & more of a caricature of the real sound, w/ less definition to the edges of the instrument images & a bit phasey, w/ less definition of the space between instruments too. I thought the CD was the inverse of the above & preferred overall. Again, just like the Krause disc, once tuned in to the difference much preferred & not subtle.
I asked which layer he preferred on the same disc.
My friend replied that my results didn’t surprise him. He said Collin Cigarran, Sony's ex-head of SACD software here in the U.S., admitted to him that Sony had to "manipulate" the CD layer on hybrids to make them sound inferior to their SACD layer. Worse yet, they used sub-standard master reels when they re-released the 22 Rolling Stones SACDs and many others. Sony had sourced six of the so called "master reels" from eBay for the Stones project. Strangely, another mutual acquaintance has different master tapes for the same six Stone’s recordings, and his masters are lower generation than they bought from various sellers on eBay.
He said the main reason Sony failed to give our mutual acquaintance a promised Sonoma workstation (basically, their DSD digital mastering system) was because Collin was afraid our friend would not manipulate the CD layer and it would expose SACD for what it really was/is ... just another format in which Sony could control the copyrights of their releases, under the disguise of better sound quality. (Oh, like HDMI? I ask)
My friend said he has few SACD's because few impress him, while many CD's do. He mentioned some people’s business might be hurt if this stance was made public, because it does "sound" like an improvement in some cases.
He mentioned, on our mutual friend’s discs, he prefers the CD's burned off the same Alesis Masterlink that he used to do the particular hybrid disc I auditioned. Sonopress Germany screwed up the sound quality of that recording at their facility, in his opinion. He offered to send me a CD burn of that one for my assessment.
He said my “phasey” reaction regarding the SACD was spot on. He also mentioned smeared/loose focus & the tonal issues I mentioned. He said these problems didn’t exist on the SACD master when our friend sent it to be manufactured, but it is plain as day on Sonopress's finished product. He said Crest does an even worse job, & concluded by saying it’s no wonder SACD failed.