I am working on my Chinook helicopter mod. Prior to update 1.3 - and something present in the 1.3 experimental, is a weird graphical glitch which causes my mesh to quickly swap (flicker) between high- and low-quality textures irrespective of current LOD level. I tried a combination of LOD factors for the vehicle prefab to get rid of this phenomenon, to little or no avail.
It was also noticed that at lower LOD levels (ones rendering when further away from the vehicle), the texture resolution would actually get better. I believe this would have been caused by lower LOD levels having less polygons, leading to the engine prioritizing higher texture resolution. Regardless of the cause, this is a serious issue for my very large aircraft.