Does this sound like it addresses what you are seeing?
No, for my images i don't use this line. i tried a little bit with it but get not really better results.
But additional, i work only with Raw Frames, the Camera delivers only Frame ID 3 and no shutter rises.
If the Temperature of the Core is stable, the Quality is quite use full.
What is the VDAC array? Is that the bias settings used for reading each pixel, by chance? IF so, it would be something that changes at each frameID1. That could be a big help...
I think yes... and it clearly change at the startup and only after some Frame ID 1 Images.
i can remember , that the Seek still has changes if the Device was cool down and reinitialize only in raw mode.
I can confirm, that the Frame ID1 change some pixel, and after my reference Map and a uniform image, the Pixels appear darker as the surrounding Pixels if i Spot on a warmer surface. So Frame ID 1 not only change an offset, it change the Gain of the Pixel too.
And for those who have a FLIR E4 (or other with remote access), with the Ex-Tools it is possible to Change the Values of the Digital filters and disable them. its quite interesting how the "unfiltered" Image looks, its a low difference to the Seek image.
if i had more time i make some comparison images.