While other QQers fiddle with their output levels to achieve the perfect balance when playing certain, shoddily mastered*, 5.1/4.0 discs,the quality control achieved by Michael Dutton is second to none. And that ain't faint praise!
*for instance: "Fixing" the Jeff Beck Group's Rough and Ready quad (Sony SACD)
No offense to @Jim the Oldbie (great detective work!), but I don't think that's really a fair instance of a defective disc because tracks 1 & 2 are sped up on all versions of the quad mix (the old SQ LP and Q8 tape)- All Sony Japan did was reissue the quad mix, exactly as it originally appeared. It's not their job to actually go in and fix 40 year old errors on the quad master tapes (like the missing keyboard solos in "Come Dancing" on Wired, these speed issues, etc).
To me, "shoddy mastering" is more like the poor EQ on the original issue of SW's Thick As A Brick 5.1 mix or the flipped fronts/rears on Ten Years After's A Space In Time.