User blog:The nin one/Limit to Ursus shock

I have noticed in the anime and Manga, that when Kuma was forming Ursus Shock that he looked like

he could have put more power in it. The second time was against Oars.Jr, and i noticed that it was

"more so" rushed. What do any of you guys think? Is there really any limit to how powerful that

attack could be, or was Kuma just estimating how much he would need to defeat said targets?