Digital BW, The Print

Hi,
people seem to think that the MIS magenta inks are less lightfast than Epson's. But I looked up the MIS fade tests and they claim the opposite.
http://www.inksupply.com/fading.cfm

S0 ... are the MIS fade tests scientifically sound? I wonder, because they use bleach instead of light to test fading.

thanks,
Richard
--
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   "All conservatives are such from personal defects.  They
   have been effeminated by position or nature, born halt and blind,
   through luxury of their parents, and can only, like invalids, act
   on the defensive."
   --Ralph Waldo Emerson