Why cant I breed a modest Abra with Synchronization ability too?

Question

Hey everyone i'm pretty new to breeding,
I have been breeding a modest kadabra with a modest abra, and the kadabra(female) has the synchronize ability, and is holding the everstone to boost the odds of modest offspring, but every egg that hatches as a modest abra has the Inner Focus ability, and i'm trying to get Synchronize. Is there a reason why none of my hatched abras have synchro? or should I just keep trying?

Answer 1

>When breeding with non-Hidden Ability females in Black 2 and White 2, there is an 80% chance that the Ability slot of the female will be passed to the baby.-Source

Just keep trying. You will get it eventually.