Mining both Enmatter and Ore

Many people suggest that while one is doing bad, the other does fairly well. In this case, you can break even, even while one is doing terribly bad.

Personally, however, I believe that while theoretically it may be true, it's not a good idea because of the skill levels. Each ore has different skill levels, enmatter with prospecting and drilling, mining with the others. Skill levels are a big part in determining what kind of enmatter/ore you get. Doing both will limit your skill level.