Is there an actual way to test agility? For example, my light fighter feels more agile than a large bomber but whilst making small adjustments to it it doesn't seem to do anything. Is there a way to numerically test the agility of an aircraft that can show if something improves of unimproves the aircraft other than just looking at it?
You can try putting a very strong gyroscope to see if your plane can push harder to counteract the gyro effect, for example your plane can push as hard as 60°, after a minor change you can only push to 45°, although not recommended this might work