Ryu anti air DP FADC to ultra 1?

Was watching some evo footage earlier and stumbled upon an Alex Valle Ryu match. He hit someone with an anti air DP and FADC’d into metsu hadouken. Headed straight to training mode and tried to do it a few times with no luck. Does anyone know if this is done in a specific way? Or is it done the same way as the regular FADC ultra? I’ve had 0 luck so far trying this.

Needs to be EX

This is pretty basic stuff. When doing the mp.dp anti-air, he **delayed **the dp so that the first of it’s two hits lands (rather than just the second hit). That way he can FADC it into ultra.

if you do the DP with a jab its gonna work 100% of the time