1: Danzo said maybe when he was specifying if yagura was the perfect jinchurriki. Its something I noticed recently as well.
I do admit the itachi find is in your favor right now. I'm not sure if its a mistake that he doesn't have a MS while having susanoo activated or if its possible, but the databook says otherwise which leads me to believe its a mistake.
We saw tobi without a MS control it though. You can't compare susanoo to controlling a TB. What's been said and whats been shown are two different things. That page still shows tobi using only a 3 tomoe to control it.
Here's the Yagura link
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