RR1, appreciate you insite. thank you for that!
Your sense is that these insiders are convinced of the contrast or differentiation that the Sigma Photo Diode has over competing other sensors on the market.
I often ask, what distinguishes a product from the competition?
Since AI cannot distinguish IPQA, from competing sensor systems, their choice of a PD sensor must be the fundamental aspect of IPQA that provides a barrier to entry or an obstacle for the competition.
With all respect, IMHO, their choice of PD sensing is weak, alternative sensor choices and perhaps sensor fusion will likely prove far superior to the Sigma Labs choice of the PD sensor.
cheers and all the best investing.