You make a sound point.

Right, I will re-phrase the requirements for custom species. I require players to substantially detail their creations CHARACTERISTICS (not necessarily strengths and weaknesses, just what they are), I can then determine if it is acceptable for the RP or not. I think this should remove a significant amount of the clutter on the sheets (I was a bit annoyed about that).
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Edit done. Please look over modified race category on sheet.