@ronkent, I like and respect Paul. There is very little I disagree with him about, such as the importance of time coherence. If he did ask why a BHK might be disqualified for use with a given Thiel, then I have to question whether or not he actually read my post.
I don't usually like to speak for those that can speak for themselves, but this was addressed to me, and I might be doing TomThiel a diplomatic favor in this case; if you were to search through this thread, you might find from himself regarding, yes, the inquiry about BHK amps with Thiel's, and further along in the thread a caution about Thiel impedance loads and the " 2 Ohm Stable for musical transients" rating.