Thank you for the detailed report.
It will be very helpful because it will be explained in the image.

First of all, the cockpit pilot has not been fixed.
Because I extinguished the pilot when I flew, I did not fix it.

I have not made any LOD models.
However, I adjusted the distance with LWS to make it less uncomfortable.
(The distance of the LOD2 model has been increased.)

Although it is model smoothing, I did not thoroughly carry out the smoothing (it started from the US military helicopter) at the beginning of production. Because in my game screen the non-smoothed surface also looks smooth.

However, I found that even if the surface looks smooth in my game, the surface does not look smooth on other people's game screens.
I will start to fix RAH 66 and UH 60, but I will reconsider other aircraft.

Please let me know if you find a problem again. (It does not matter if there is no picture)