I would love to see a manufacturer code of the cells on the case. Like with CDR and DVDR there are only a few manufacturers and many brands. The Media code on the disk is referring to the original manufacturer with which a true list of quality can be made.
With LiPo's you buy a box with a nice RC brand label on it but no info of what is placed inside so today it can be "cheese" and tomorrow it can be "pinut butter". (in a way of saying)
Also there can be a difference if the battery comes directly from production of was just waiting 6 months in a warehouse for a buyer.