Help with Zero's OTG

I am having some trouble with Zero’s Rekkoha from OTG. More often than not, I would find that the Rekkoha doesn’t connect from OTG and the opponent can just roll out of it and punish. Is there a specific timing or something complicated involved from this? Any help would be great. Thanks.

You have to do it as quickly as possible. As soon as you hit the ground you have to do the Rekkoha.

I know I’m way late, but it could be you’re doing the air combo wrong. When I was learning Zero I had the same problem.

While in the air, you kinda want to be under them so delay your jump a split second after you launch. This way you land before them, giving you more time to super. Look for the hard knock down animation.