Dirt on Dirt on Dirt:
Anywhere on screen, you can dash under B1U2 to change direction of your combo. By using this, you can sacrifice some damage to keep your Flying Ninja going the same direction towards a corner, despite combos starting on different sides. Now, instead of just an annoying mixup to get some damage, you can use the Flying Ninja as a fairly reliable way to get your opponent into the corner to proceed with the Corner of Death vortex or just more reliable damage.
So, you can do: JI1, B1U2, dash under, 123 for 22% and a HKD to keep the vortex going, but this may not be optimised.
If, after the JI1 (crossup or fake), your opponent has their back to the closest corner, just go with whatever combo->HKD option you would have.
If you have meter to burn, you can also use bounce cancels for the same purpose and to put more pressure on them to block correctly. JI1, B1~DFMB hits O-L-O, and will let you combo into vortex off any of the hits (JI1, B1~DFMB, 123 does 25% with a HKD, and may not be optimised). Even if they block correctly, you're still have F3's stupid block advantage to keep up pressure.
If they start wising up to the O-L-O string, you can do JI1, B1D3 or JI1, B1~LGS to turn it into a O-L-L-(L) string, although both those options are wildly unsafe on block (B1D3 at least -14, LGS has about a week of recovery now) and will end your vortex even on hit.
Short version: use B1U2 to change direction of your combo, and then use Flying Ninja to push your opponent into a corner for the more damaging, harder to escape Corner of Death vortex.
