Awesome work, we love it and have been using it for various server types. We found a small issue that you might be able to fix? It seems that the mod Earthworks is using the oredict; minecraft:stone to insert their blocks as well, so the superflat settings:
3;minecraft:bedrock,254*minecraft:stone,minecraft:bedrock
are not being respected as only stone, their blocks are also spawning in place of stone. Could you please make a fix for minecraft:stone to be only minecraft:stone and no other blocks (oredict versions)?

Using:
Cavecolonies v2.0
Earthworks mod is somehow inserting it's blocks into the overworld even though the config states:

     # VOID-NOT USED, OVERWORLD-NOT USED, SUPERFLAT-Use the string as used for normal flat worlds, WORLDTYPE-world type to be used (set like server level-types), CUSTOMIZED-NOT USED
    S:worldGenSpecialParameters=3;minecraft:bedrock,254*minecraft:stone,minecraft:bedrock

    # Overworld generation type
    # Valid values:
    # VOID
    # OVERWORLD
    # SUPERFLAT
    # WORLDTYPE
    # CUSTOMIZED
    S:worldGenType=SUPERFLAT

Clearly it should all be minecraft:stone , yet the mod Earthworks is inserting it's blocks as well. We need those blocks in the mining dimension but they also spawn in the overworld.