Okay, here is the deal. There is this thing called a placebo effect. Double blind tests show that if you give a control group, a drug, say, aspirin, and another group a sugar pill, and tell them both that they are getting the same drug, almost as many people will feel the effects they were told they were supposed to feel from the sugar pill.
I have tried H3 National that I know was real. I have also tried H3 Provincial from the same source. And commercial. There may be differences. But the differences are so small that it is not worth bothering. Get commercial H3 Neo for $20.00 and boost the heck out of it and that is pretty much as good as H3 National unless you are getting the H3 National from one of the CNT members directly. Part of what makes the National good is that it is factory tuned. So if you get one that actually was real but it was sitting around for a year, then the boost has probably worn off and it wouldn't be that different than a commercial H3 anyway.
Save yourself the money. Commercial boosted is good enough. Or you could get Yinhe Big Dipper and boost that. That would be pretty good. Or Haifu Blue Whale II and boost that.
If you are a student any of those three options would beat wasting the money on National because most of the rubbers that claim to be National are actually fake and the ones that are real, by the time they get to you, what made them so good has worn off and they are no longer that different than the commercial stuff.
Don't believe the hype.