The question is:
How many years of experience Andreas now has with his
special detectors and how significant are the made tests
if it comes to sell this stuff to the "outside world".
If the tests were not good enough, he is reliable for selling
stuff that doesn't work outside of his test-areas.
If we see it as an improvement of a principle based circuit,
within 4 years (the estimated time Andreas work now with this stuff)
it should be possible to improve it - if it has (had) any good potential of
producing relevant detection-signals at all.
btw. in my opinion this new infared stuff is bullsh*t and will have no
effect at all. A gold-bar 10cm below ground may have heatened up
in daytime so the surface of the soil is "hotter" at dawn - but just 1° perhaps.
And this is no ultra-zoom infrared-lens so it would really see something.
Together with this suspicious connection to Dell Winders this new unproven
infrared-thingy leads both into some not good or serious direction ...