ORIGINAL: tailskid
The 'worse' case situation when flying is when you run out of fuel and by then the CG has shifted rearward....hopefully to the correct location. When you take off w/ a full load of fuel, yes you are slightly nose heavy but not that much. Remember a nose heavy plane may fly poorly, but a tail heavy plane usually flies only once!
Not if your good at repairs and balance it properly the second time around.