Hello everyone, hello Amir
We follow your adventures from the Hcfr forum in France, it's good news to learn that a Klippel NFS will soon allow repetitive measurements to be able to compare different speaker models.
Here is my opinion on what would be both useful and easy to read for an understanding accessible to all.
Editing a complete spinorama for the lack of directivity can be simplicity for the uninitiated.
The publication of simplified measurements would be fabulous for a quick reading, I think of PIR (Predicted In Room used by Harman) alongside a measurement of DI and a full spectrogram.
Then a graph with ventilated distortions, THD (Total Harmonic Distortion) and detailled harmonics (H2, H3, H4 etc ...)
The Harman PIR has the advantage to be simply possible for comparaison directly in room at home, by a measurement of the RTA including micro turning (the "MMM Mouving Micro Mouvement" method of Jean Luc Ohl :
http://www.ohl.to/audio/downloads/MMM-moving-mic-measurement.pdf
This simply method offer a response fairly close to PIR in the room above 500 / 700
http://www.ohl.to/