Board Thread:General Discussion/@comment-35233810-20180412205933/@comment-28044177-20180502093642

Toshiro himself isn't as weak as you would believe. Most of the times he holds back the power of his Bankai because it's difficult to control, since he hadn't mastered it yet. He doesn't want his allies to get killed in the process. That's why he was avoiding big moves throughout most of the battle with Harribel. But once he lost several ice petals, his Bankai became weak enough for him to properly control yet still be effective. But that's not to say Harribel is weak either. She's shown that she was stronger than Toshiro throughout the battle, and only used her Resurreccion to show off her power. Even when she was trapped by Toshiro final attack, she showed no injuries from frostbite at all. Sure Wonderweiss helped free her, but she probably could have broken out on her own eventually. After that, she fought Toshiro again, and Hiyori and Lisa at the same time. And still had an upperhand until Aizen cut her down.

Also, I don't think Ulquiorra changed his battle style at all. I mean even after Full Hollow Ichigo was overwhelming him, he continued to use his energy lances and Cero Oscuras.