RE: world models intruder
Sounds good Garry.
One thing you said that attracted my attention....you shouldn't need any aileron differential on that airplane.
You may be flying too slow....remember that the airplane is really too heavy to fly slowly and expect it not to wallow around. A full F3A airplane is just barely a pound heavier with several times the power and aerobatic ability.
Keep the speed up at all times and use the turnaround downlines to gain speed....keep the throttle wide open and the speed up and you'll likely fly it better.
Don't make the uplines on each end so tall that the airplane stalls.....this is where the 30% fuel will show up.
Keep it flying even though it is in an unusual attitude.....it can wallow around at just above stall speed even if the throttle is wide open.
Keep the speed up at all times.
Fly it like a P-47.
Dave