One of the things that was apparent from the 'old' MoFi releases, of which I have quite a few - is their bumped up bass and treble. Comparing a MoFi from the early days to a good original pressing, the latter usually wins out. I don't own that many new MoFi LPs- I gather that they vary in SQ (now I'm not talking about pressing quality, but how the record has been mastered, perhaps what the source material is that it was taken from, and the EQ placed on it).
PS Pingu- I believe QRP does pressings for various labels, not just Chad's Analogue Productions.*
And what you are describing seems to have less to do with the pressing process and more with how the record was taken from source and mastered. See my comment above, re MoFi. I think the QRP of Tea was an Analog Productions record.
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*I may be mistaken here, for example the Verve reissues are licensed to AP. But the point about the mastering process and the source material is still valid; in other words, the complaint you describe may not be the pressing quality per se. FWIW, some of the records I have that were pressed by QRP sound outstanding.