SD,
Third part inks usually require a different colour-profile to be loaded, in order to get right amount of "boost" to said colours.
Have you checked if there's a printer-profile to be downloaded from the manufacturors site?
I tried "pirate-packs" before, but ended returning "home" to Canons own inks.
Both due to longevity and also the fact that I had to flood the paper with a lot more ink to get the expected result (=extra cost). Flooding, that in turn can lead to run-back/bleeding of ink, ruining the picture.