I don't have Mars on Mofi, but have several of the newer Mofi series done at 45RPM on their Gain 2 system. Workingman's Dead and American Beauty sound incredibly detailed, rich, dimensional and quiet. Ditto Miles Davis Filles de Kilimanjaro and Sorcerer. Mofi's Filles bettered an excellent CBS UK pressing.
Grateful Dead: Mars Hotel LP recording
Was listening last night, starting with Graham Nash: Songs for beginners, Judy Collins S/T, and finished with MFSL Mars Hotel. I have to confess, it was a late one, and I tweaked my VTA at the end of the Nash LP. But to my ears, it was better after the VTA change. The Nash LP was a pleasant surprise, hadn't heard it in years. Great listening session, but Mars Hotel was sonically underwhelming. A bit flat, and diffuse….Such great music, but had nothing going on. I hadn't listened to it in some time, but never remembered it was such a subpar sounding record. A real shame, because it is a NM LP, the old MFSL too. (-: