Firstly, thanks for reenabling trackIR in experimental it's great...
When using TrackIR, both the mouse control and head orientation affects the binocular view when holding down the interact button...
Not sure if its working as intended but it's disorienting as headtracking movement seems magnified whilst using the binoculars which makes it disorienting.
Also having the compass out seems to cause issues but since i'm not entirely sure what the problem is i'll update this when i've tested it more.