[Ryu][Ultra setup] super in spinning bird ex to ultra

I wanted to see how it was possible to punish a missed sb ex in training mode. After many tries i managed to find how to go in this state which reminded me of a match with a Daigo where he tried it.    • Daigo (Ryu) vs MagnetoManiac (Chun) @ Seas...   If if tried it, it had to work in a way. Anyway it's still over situtionnal. You have to do the super when the sb ex comes out. Will you waste a full super just to do this crap setup ?