Imo u have to do the backflip while balancing on the leg u were balancineg for 75 frames. If u jump to reposition yourself u have to stay another 75 frames on that leg before leaving the ground for the backflip.
ALSO i have a suggestion for future Reta says Events:
If u get penalty 50 frames ( like bsquad did ), the penalty should apply like this:
-50 frames at the end of the 1000 frames u have initially.
So person with penalty finishes hes frames where 50 frames are left instead of 0
I think this would help the fl0w of the event and of the replay.
This event sounds promissing and i hope next month it will be better with more people.