Why plane your intakes w/ milled heads???

Actually, "captain obvious" was dead nuts on the money. Why be so condescending? He answered your question. ...and correctly I might add.
So it will fit seemed as though it may be a smart *** answer to me. If it was not intended that way, I apologize. That is how i took it. The question is wondering why one method seems to be used, or preferred to the other. End result= the intake fits both ways. That is why it seemed like a very obvious answer.