I feel like you didn't really read what I said and only implied an insult either to me or the OP with a malevolently worded ad populum. The fact that most people use THD instead of a more adequate form if measurement has nothing to do with your disdain and hateful view of this community. It's simply the easier thing to compare. THD is a standard, and Multitone tests are custom. You can't compare the results between different users who use different test procedures. The problem that I'm pointing at however is that you're not using THD for that. You use it to draw ignorant conclusions on working principles of transducers. Your reasoning only applies to multi way devices. A fullrange driver distorts in it's entire bandwidth. This is an obvious fact known to everyone who designs audio and a primary reason why it's worth to build multi way speakers. If a fullrange driver is playing bass, the vocals distort. That's just how it works. HD plots don't display that. Multitone tests do, because unlike HD, they were specifically designed for testing music reproduction.