Im sure these guys using THG would be using fina if not for the drug tests. Kinda like why guys would do Tbol back in the day, because its was invented for the purpose of being undetectable unlike dbol. Of course dbol was superior but tbol had the benefit of you would still be able to pass a drug test. So Im gonna assume the same thing here. Fina is actually superiour and now that there is a drug test for THG know one is going to do it. At least an intelligent person would have no need for it. Im sure its just marketing and the price would be double if you even could obtain it.
Its just got that "sexy" thing going for it that makes it desirable to the average guy, because elite athletes used it..