Can't help with your individual question but just to say I had trouble with Epson compatables of the T0711/2/3/4 type.
Replaced one empty cartridge and problems with not recognised etc. Replaced the whole set with four new and ones and one (yellow) wouldn't work.
I use only Jetecs now which have been 100% reliable, come with a guarantee, and an address and email support if needed, and these are now available as "own brand" in Wilkinsons and Morrisons... not sure whether those have the "extra life" programmed into them like the JT's
Too much grief from using others, never again.