ORIGINAL: MIXMASTER
I think this thread is going on a bit too much about weight, a plane that is 20% heavier will still 3-D, as long as you have over 1:1 thrust :weight, its nice to have more, but not critical. Get it as light as possible, within reason. The main difference is recovery from stall to normal flight, the heavy plane will take longer(or more altitude)to get flying again, you can manage the transitions once you get to know the plane and you must have confidence in the engine, absolute confidence DOD.
Great thread guys.
Thrust is not an antidote for wing loading.
BOB