Can there be symposium flying... you must mean a symposium dex incorporated into a "flying set". My immediate answer would be no, but now you've got me thinking.
Symp Atomic might work...though it might just look like a toe eclipse or something.
oooo, you guys just gave me an idea for an awesome combo, next time I play, I'm going to try blurry dragonfly> legbeater, how's that for a phat rewind?
Would this be symp mirage but with an inside kick while still in the air, instead of a toestall when you land, be considered symp flying? Try it...its a lot harder than you think!!!
You jump off the foot that will be doing the flying stall, stall with that foot in the air, set it, land back on that foot. = symposium flying toe stall.
And I am pretty sure that, for the record, it only get's one add even though it's harder than blurry whirl and other bigger add tricks.