the twist and shear settings i used were almost default i think, nothing special...
the cloud layers were aeach about 4200 in depth and 50 in density, very low edge sharpness, um i remember the high clouds were set to feature scale 5000, lead in scale 232404 or something, -0.25 coverage and were set to perlin billows with noise variation at 4...um i think i can just post the file when i get home....thanksfor the comments