I seriously hope I am not spamming this thread. If I am, kindly let me know so I can move it to another topic.
For the wing flex, I was following the tuning guide at Tuning Process Instructions — Plane documentation, where after step 6 and a bit of manual decrease of D term, the flex is almost all gone. maybe it was due to the control loops overcorrecting. Either way, a significant decrease in wing flex is observed.
Step 7: Re-tried QHover which also performed much better.
Step 8: Yaw Bias while QHover is a mean of -0.04 with a peak variation of up to -0.12 at takeoff. Documentation states it should be less than 10%. Does that refer to peak-to-peak variation or should it be read as ±10%?