In my experience and the experience of everyone i know that's received an LL (and was buying lowkey amounts), there is no "burning". Even after MANY LLs. If you are purchasing large numbers of mags for reselling, then that is an entirely different matter. That said, if you are finding that a particular vendor you are using, regularly has their packs seized, then it might be best to find a different vendor with better stealth packaging and shipping methods.