User blog comment:Zwann/Vasto Lordes in the Espada/@comment-1511643-20091002234151

-To ZeroSD, just to clarify. Grimmjow is a confirmed adjuchas based on his flashback-

Note, between the flashback and the modern day his release/true form changed. He went from quadruped jaguar to biped humanoid jaguar. He was an adjuchas in the flash back no doubt, but it did end with him taking a sample from a lot of strong hollows for the purpose of trying to evolve him. It could've simply being arrancarization let him improve his release, but it could be he managed to evolve.

-based on that same flashback Nakeem Greendina was a confirmed Gillian.-

He was? Ok. Still, the difference between a lesser adjuchas and one of the Espada ones was huge.