White Nav light orientation off center
The white Nav lights at least on the Turbo Arrow IV seem to be turned to the left (when looking from the back), around 45°.
You can see it at night by watching the reflection on the aileron and the shine on the ground, both white nav lights are not centered.
Not sure if this is the case with the Turbo Arrow III, didn't check yet.
Also I noticed that even with the dome light turned off you can see a slight red illumination of the cockpit when in external view. It gets brighter when I turn it up in the cockpit, but it should not cast a red light in the external view if it's completely off.
Not sure if I shall still open a ticket, but it seems like Martyn reads the forums to take this into account