Don't forget this is very much an experimental flight test program.
This means that for every little stretch of the envelope:
The stress engineers will be carefully pouring over the strain gauge data to see that the stress / fatigue calcs are correct.
The dynamics engineers will be carefully pouring over accelerometer data to see that the rotors flex in the way that was predicted.
The control engineers will be pouring over the FBW logs to see that the actuators are responding as anticipated.
Frankly, i would be astonished if this was the only program to achieve its stated aims without one group finding something that they need to understand better. Look at how many redesigns occured between first flight of VS-300 and R4. That's just engineering.
The most important aim for every flight is to walk back into the office...
