I dont know if the 'subtle' is right or not (i dont own it, have rarely seen it), but the batchcode can be stamped on or printed (both can be real). I read awhile ago that stamped codes were on stickers because some batches were missing the batchcode when the stickers were printed - id like to know if anyone can confirm this as it may be useful to know? Im pretty sure this came from a MAC counterfeit guide so its not fact until proven.