Sound quality, in this case, also relates to the "detail" of the scratch as oppoesed to a "blur".
The pink Scratch cartridge design goal was to have a compromise between sound quality, anti-skip and "abuse resistance"(ie damage to the cantilever)
Straight arms change the whole geomtry of stylus angle and "tweaking" can affect the results from table to table.
No question that the high output can overload older mixers, but current models should have no problem. As stated previously, all Ortofon styli are interchangeable ( except the GT) so the Qbert stylus on a Pros S or Nightclub black body will yield same performance at a lower output.
Once broken in (the ones at Plaza might not have been) the Q's really do stick w/o tearing up the record.