I getcha man! But your comment just seem to insinuate that patina transfer is due to "terrible" metallurgy (and that I'm using a cheap clone)... but after some reading and such, it appears to be simply the nature of copper itself and how it reacts to its environment.
But i hear ya.... some
mod metals are probably better quality than others... but to be fair, i'd venture to say that it probably isn't limited to just cheap clones.