When i was a newbie in this game I was so worried about paying the gym source the insane prices they charged just to get bunk gear so i studied up on how to spot a fake. The biggest thing everyone said was to look at the corners and the labels. If they were square and looked like they were printed off of a computer that they were fake.
Now with all the new UG labs many of the labels are printed from a computer and have squared edges. Lets take LR for example I cant do many things on my computer but i bet i could make those labels. And what about PL? The same thing.
So I am going to throw it out there that this method of spotting fakes is long outdated.