I don't think it matters much. Some hand feed and it is thrown in a smaller area, some use a automatic feeder that will throw it 30-40 feet. Main thing is to make sure it is far enough out that food stays away from bank long enough for them to eat it.
I second this and its is much nicer if the feeder is up wind of the direction you get the most of your wind from. The wind then will push the feed out from shore.
Cheers Don.