I would have thought flying the hawk with 22lbs is a bit marginal' if you build it with very light batteries and a lighter thrust tube and keep the fuel load down you probably would get it to fly, however if I had had a P100 on my first flight no way would I have succeeded in the go around!
The P120 or now 140-RX is perfect for this plane plus it flies so good I would hate to risk it on a P100 [

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Alan