Hey Guys, 
  
Here's the settings I'm currently using that look pretty good to me. To use, just export the default enviromentsystem.ini from whatever game you're playing (WoV,WoE,WoI) using the CAT extract utility. The file will be automatically saved into the Flight folder of you install. Go to that folder and then rename the "enviromentsystem.ini" file as "enviromentsystem_ORIG.ini" so you always have an original copy. Open it, find the corresponding "[CloudsScattered]" and "[CloudsBroken]" sections in the file. Replace them with the following: 
  
[CloudsScattered] 
MaxClouds=54 
MaxCloudParticles=81 
3DCloudMaterial=CloudMaterial 
3DCloudHorizontalSize=1800.0 
3DCloudVerticalSize=2600.0 
3DCloudSizeDeviation=0.47 
3DCloudParticleDensity=1.4 
ParticleSize=380.0 
ParticleSizeDeviation=0.28 
MinBaseAltitude=600.0 
MaxBaseAltitude=1200.0 
UseBottomRow=TRUE 
MaxVisibleDistance=10000 
  
[CloudsBroken] 
MaxClouds=58 
MaxCloudParticles=87 
3DCloudMaterial=CloudMaterial 
3DCloudHorizontalSize=4000.0 
3DCloudVerticalSize=2900.0 
3DCloudSizeDeviation=0.57 
3DCloudParticleDensity=1.1 
ParticleSize=360.0 
ParticleSizeDeviation=0.22 
MinBaseAltitude=600.0 
MaxBaseAltitude=1000.0 
UseBottomRow=TRUE 
MaxVisibleDistance=10000 
  
When you're done editing, do a "Save As" and change the filename to "enviromentsystem.ini". The whole operation should take about 5 minutes. No sweat! You could also copy the same sections from the FE1 "enviromentsystem.ini" file you like and do the same operation with the extracted file from WoV/WoE/WoI. Then paste the "cloud1.tga" from FE1 and into the Flight folder. That should get you pretty close to what you're used to. 
  
The MinBaseAltitude in my settings above are VERY LOW so if you're flying over mountainous terrain, you might want to change that value to 800 or 1000. 
  
I suggest trying some of the cloudskins or cloudscape clouds (loads of different images there) and see which ones fit your personal preference. Currently, I'm using the "Painted-Layered-512" cloud from "CloudSkins Too" with the settings above. A screenshot of how it looks in WoI is in my gallery here: 
 
  
Let me know how it goes. Feedback is hugely appreciated.