Imagine if the Feds didn't require you to have balanced field...what then?
Actually we are not required to use balanced field performance by the Feds, I presume that you have heard about optimized V-speeds, or Min V1, or Max V1, or Improved Climb, or Overspeed?
As for Cheemsaf "making your point", didn't you realize that he was talking about a F16 Fighting Falcon, as there aren't any airline/corporate aircraft with afterburners (Since demise of Concorde
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I take it that you wont ever fly again in an airliner as we are too dangerous
Mutt