Thanks Andy. I take it for you your dynamic reticle, the below applies.
"This dynamic reticle should work for most of the older FW 190 aircraft that have the small sight glass with the clipped corners centered on the dash.
Add this to the Effects section of the aircraft xdp file:
<Effect Type="Track" EffectName="GR_OKL_Revi16D_gunsight" PosX="0.000" PosZ="0.0" PosY="0.880" Pitch="90" MinVel="-999999" MaxVel="999999"/>
*** This won't work for the D models, fw_190a_8z (Blue 17) and ETO_fw190_A8 (J3) that use a different gunsight system. *** "