I think its still kosher because the carts are disposable, IE not meant to be refilled and reused.
That being said, I've taken up the Fin kits, I cleaned out 2 carts it came with usin spirits and whatnot, the cartos perform VERY well for the cost. So well that I invested in the platinum kit which has the pcc with it (it was 19.97 at my local walmart!)
So once it charges, well see if the platnium kit works as well as the starer kit, but otherwise I been happy and impressed with it vs say eroll, mark10, and a few others. I'd love to try vuse, but I cant clean and refill the carts for it =(
fyi, 0 nic user here. which is my delima ^^