Fubar, do yo use the wide sky mod with those settings? The reason i ask is that I tried your "detailmeshsize" settings and the had some severe cloud/sky texture clipping that morphed into the terrain tiles and followed their outlines. I thought it might have something to do with the lexxluther farclipdistance mods- 5000E+3, but when I returned the setting to stock 80000.0 the clipping was still horrendous.
there was one alpha object issue in play before I changed the flight engine settings:
I use Starry's new alpha objects settings.... it fixes the flickering trees issue but it has a glitch with widesky mod, the trees sometime show through thin cloud layers.
I would be grateful for any suggestions you might have. Your detail mesh settings make a huge improvement in the terrains depth and realism I really would like to find a way to make it work with Starry's new data and widesky.