I've tried using the stylus with just the RC 2 only. Still a little difficult to use but much better than my fingers.
Just to be clear the stylus I'm referring to is not the Apple Magic Pencil you mentioned.
A stylus like this
https://www.amazon.com/dp/B09CDCN7VS?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_2&th=1
helps a lot. Might be easier to use in the field.
I just now tried the mouse approach. I'd have to say that it's a game changer.
Yikes...
My theory is that the leftBack came into contact with the chimney which caused the CW roll and pitch down attitude. Depending on how it's measured the distance to the chimney can be as little as 0.5m. That's well within the margin of error.
Why...
The gyro data shows that the CW roll occurs just slightly ahead of the rightFront being commanded to 100%. That probably means something caused the CW roll and the FC responded by commanding the rightFront to 100%
The Phantom Help and Airdata web presented log content show very little of the total log data... in order to access all you can download their .csv version of the log & open it with either excel & there create graphs from the column data or you...