I love the creativity behind this idea, but it seems arbitrary in its usefulness. Aaron himself said:
"I noticed that people's individual impressions typically varied substantially, making it difficult to get an idea of just how potent a fragrance was."
If this is the case (which I think we will all agree it is), then of what use is a scientific measurement of the fragrance's projection? If it varies from person to person, does it matter what a sniffing machine says?