I don't feel like explaining it for the thousandth time in this thread, so if you'd like the answer, go back and read the last few pages.
BTW, the whole ''if you need a subdude to tame LF radiation, then your sub is terribly constructed'' argument is worthless propaganda and has no basis in reality. Yeah, Bill, because HSU research makes such shoddy subwoofers Instead of making laughable and fictional arguments ike that, just admit that there are specific environments where the floor will act as a radiator, no matter how well constructed your subwoofer is. That is reality; don't debate it.
What sub are you using? Is it this?
You could always take a quick video of before and after if you feel so strongly about it. That might be interesting.