If the cloud depth is too high, the center "hole" for the planet starts to exponentially grow until it's outside the planets range. I wanted to do a planetary system with some moons, but also get some cosmic dust into the mix for artistic lighting, but to get the spread out to the moons, I get a hollow sphere around the planet.
Perhaps use 2 invisible, differently sized planets with their respective atmo's, one filling up the hole in the other.
Good idea, it may work. Thanks.