Mouse view issue/smooth panning

[Tully]

I get full range of motion with mouse either using the mouse or mouse emulation on a joystick hat (X-52 native mouse mode).... but only when the shoulder straps are tightened (shift-F1 by default to toggle seating position / shoulder straps) so that the pilot is sitting back from the gunsight. When leaning forward I can only pan the range you describe.