I will, but after Upton Park.
Some investigations and that what I promise before few days.
First about lightmaps. You know that for now we are making them with blender 2.58a and this version don`t have option Island margin for Unwrap, so in most of the cases maps on the lightmap texture are overlapped and you getting black and white spots, lines etc. on the stadium. I think that this overlapping give effect somehow on FDLS too. The solution which I using now is to move maps manually and to make one of the parts with not more than 300-400 meshes(If there is 4000 meshes I`ll go crazy to move all maps on the texture
. Also I choosing Conformal method when unwrap, couse like that I dont have distortion in lightmap texture. And finally in Bake I make Margin 16. I know that this maybe are strange, but work very good for me! Here some screens with what I mean.
About overlapping. Here screens:
I leave the maps here just how blender are unwrap them. You can see that there is no space between this two maps and when baking are over we have overlapping. You can see the effect on the stadium on 3d view. So I just move like that this maps to have space between them and I don`t have overlap.
About Margin 16 in Bake:
As you can see the texture is kind of blurred, but closer view shown that there is no any effect on the maps, everything with them are fine
Something very important is not leave maps to the edge of the texture, couse you`ll get black, white spots and lines too.
And finally .blend file with the settings that I use are on the first page!