Big up/down vertical head movements with rudder inputs

i've noticed that with FSRealistic Pro running, there's a BIG up/down head movement if i input fast left or right rudder movements while airborne. i tried disabling the vertical g-forces effect but it doesn't go away. i also went through most of the other effects in case there was some bug w/ unintended movements, but none of them had an effect. the only thing that stops it is closing FSRealistic.

if you need a video or something, please let me know! thanks.

edit2: just discovered it's part of the turbulence effect, specifically the "range" setting. i don't think this is working as intended. anything over '5' or so causes the greatly exaggerated up/down movements with yaw.

edit: i have XPRealistic also, and what you see there is i think what the intended effect in MSFS is... your head should be moving left to right from the heavy yaw directional changes, not up and down