But my question is this:
If I have a set of piezoflush carts to store my printer, and I flush out the lines and head with an inial fill procedure, so far so good. Then, I put my ink carts in (a different set of carts of course), use my printer as usual. Then at a later date I want to put the piezoflush carts in again, except now, because I already did an initial fill, the chips don't register enough and won't do an initial fill.
There are other reasons to do an initial fill, for example, if you get air in the lines, or doing maintenance such as replacing dampers.
With regular ink carts, the solution to this is to have two sets of carts with the same ink. As one cart registers empty, fill it and set it aside until the other cart autoresets. Alternate carts this way so that you always have at least one full cart.
You would not be doing this with piezoflush carts.