Board Thread:General Discussion/@comment-35233810-20180412205933/@comment-28044177-20180505025521

Ulquiorra didn't use his sword the first time because he didn't think Ichigo was any kind of threat. Once he did, he drew his sword. That's less of him changing his battle style, and more of him being arrogant. Byakuya was the same way too, thinking lowly of Ichigo and not wanting to waste releasing his Zanpakuto on such a peasant. After Ichigo Hollowfied, Ulquiorra still hadn't changed. Ulquiorra was using his Ceros even before that. The only thing that really changed was Ulquiorra using his Resurreccion, and that automatically changes your fighting style since you're granted new powers.

I feel like we could have seen more of Harribel if Kubo didn't decide to just skip ahead to the Aizen, Gin, Kaname battles. After Baraggan's defeat, Harribel and Starrk battles seemed kinda rushed(and don't get me started on Yammy).