...This is simply an extension of his inability to understand the purpose and use of an ETC response as it provides only gain and time and no derivative frequency readout...
This parody of a discussion continues despite his questions having already been answered several times because he utterly fails to understand the time relationship responsible for the initial null as he is firmly stuck in the frequency domain.
You see, for him there is no other.
He continues to randomly confuse modal behavior with specular reflections as he fails to understand the nature of time based superposition and how it relates to comb filtering.
Thus he is out looking for a 110 Hz reflection!
But no one tell him that his illogic also renders the oft prescribed bass traps ineffectual as they are undersized relative to the wavelength of his modal pressure waves!
This is why it would be irresponsible to turn him loose with a more complete computer based measurement and analytical platform that encompasses acoustic behavior in the time domain, as he would sit despondently worrying about how so many functions of his platform are broken due to the measurements possessing only gain and time axes and lacking a frequency axis. Truly the source of software support nightmares.
Keep on clapping. And you might want to stop imposing on your imaginary friend to move the mirror around, as you utterly miss the point of damping first order reflections with anything short of bass traps.
But don't worry - it can all be blamed on that "high level maths" that unfairly require such advanced "high level" skills as multiplication and division. We can all appreciate your fear! 'Tis the stuff of which comedy is composed...
After all, one can only be expected to know so much!!!
Meanwhile, we'll just keep laughing.