I beg to differ. I've been underwhelmed by a number of half speed mastered recordings. Joe Harley from Music Matters and the Blue Note Tone Poet series commented on the challenges of half speed mastering in a recent video interview...I think with Ken Micallef.
Recently, I purchased the half speed mastered Peter Gabriel - Us, fantastic music, disappointing sound quality. The old Classic Records PG records all sound far better. Cheers,
Spencer