Hey @rocray, I'm very glad that you're liking the sound. Like I said earlier, that's all that matters. So my guess is that your tubes might be authentic Linlai tubes manufactured for the Asian markets.
I also think that the reason why Linlai Global wouldn't answer my question whether the tubes with the horizontal labelling is fake is that they are probably indeed manufactured by them for the Asian markets, but they wouldn't want to disclose that to their global customers outside of Asia. Just a guess!