Perhaps this will lead to cartridge manufactures providing a certification documentation of quality control including pictures, physical and electronic measurements.
As as an alternative, if I was buying a $5-10k plus cartridge, I would insist that it be sent to someone like WMW for an independent assessment.
As as an alternative, if I was buying a $5-10k plus cartridge, I would insist that it be sent to someone like WMW for an independent assessment.