I did some research on the series of tubes we call the interwebs.
The 3 refill kits I looked at didn't seem to be a significant savings over buying ready made carts from my regular supplier for my Canon & Brother, Ink & Beyond.
Added plus, I don't have to mess with refilling them.
Then only bad things about not refilling, is the environmental cost.
I think the parts of the carts are recyclable, but that would mean slicing them up and extracting the sponge and chip, very dirty work.
!#$@@$#!
proofraed by OwEn the c@t.