I might give that a go, but I have so far found a few settings in game that has drastically decreased the nervousness of the headlook.
My infinite screen settings for Elite is as follows now:
Speed: 3.0
Gradient : 1.25
Dead zone: 0.20
Counter to other analog input's decreasing dead zone settings for the eyetracker seem to.
But most effective was a few tweaks in the in game settings.
First and foremost I set the ingame control's menu to "Accumulate" instead of direct, in direct it seems the game always wan'ts to push back towards zero that very well could have caused 80% of the judder I was experiencing.
The rest is mostly now cases of the game going "screwy" a second or foggy glasses or my hair falling in front of my eyes (yeah I need a haircut)
Another thing I have done is decrease headlook sensitivity from about 50% to 35% (on the slider in the controls menu)
Last touch was removing all deadzone settings in the game, it might be this doesn't do anything after the switch to freetrack, since it seems to override other input settings.
For instance before this update I could switch off eyetracking and still use my regular POV button headlook, now this is completely overriden.
To use my old headlook buttons I have to shutdown the infinte screen software completely and restart the game.
After the latest tweaks it's not a big deal anymore and it's becoming more and more subconscious way of handling headlook.
I also made a small extra "riser shelf" for my screen, I can now get it and the tracker a few important centimeters closer and I don't feel like I have to crouch over my HOTAS in a manner and I can play more relaxed.
Here's a quick pic of both settings, and so far these are producing a smooth and quite responsive headlook.
