I was looking at my YT stats and discovered this thread. In fact I discovered this forum so hello everyone.
That's my video from Rockingham last year - I was having a ball and felt really relaxed, so it came as a major surprise to find myself hurtling through the air. Having checked the data logging it appears that on the previous laps I had applied about 18-20% throttle as I exited that corner; the time I fell off, I applied 35%
However I have had some correspondence with a coach who watched my video and who has been very helpful in determining what went wrong. Whilst I may have given it too much gas on that particular exit, a lot of the problem stems from the fact that I was going through the corner with a completely closed throttle, so opening it again resulted in a harsh transfer of weight; and also that I am probably hanging on to the bars too much and thereby not allowing the bike to self correct when the rear breaks traction.
I'm really looking forward to putting these theories into practice this year...