Hi Col
Sounds like fun !!
I just watched a video on flitetest about stick scaling and flips.
http://www.flitetest.com/articles/kk2-stick-scaling
The guy on there said, never, ever, ever try flips with auto level on as the KK2 can get confused and cause you to crash ?
Maybe I was lucky when I tried it - watch the vid and see what you think.
Hope you get it sorted