The law isn't clear on this. The only way to really know is through the filing of a cap-exempt petition. When exactly were you last in the U.S. in H-1B status?

The law isn't clear on this. The only way to really know is through the filing of a cap-exempt petition. When exactly were you last in the U.S. in H-1B status? Changing your citizenship wouldn't impact the analysis or outcome.