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    Good 400 to 500 size quadcopters?

    I am looking into buying a 400 or 500 size quadcopter to be used for some sport flying, as well as some aerial photography. So far I have looked at the Xugong Pro, QAV400, as well as the Cinetank Mk2. Is there any other good frames in this size bracket (400 to 500)? I would like to have the...