That doesn't just involve controlling the chakra, but understanding it so that they can knead and use it for their own. Your explanation isn't out right being stated in the DB, which is what you are using as a source. It gives the user the ability to grasp the nature of chakra. That's all it does, you are trying to reach out of proportions trying to prove something that isn't happening, but you are right on one thing.
The Tailed Beasts do give Naruto chakra to use, and I still don't see why you bring up this argument as if Naruto's CC feats come from only the Bijuu themselves. That is a joke if I've heard one all day.
That's because you don't understand what I mean by synchronization. Naruto and the Tailed Beasts after being Rikudou enhanced were able to work together at the same time, unlike before.
Do you understand semantics? It is worded in a refined manner. Yes, it is outright stated in DB IV. To define chakra control wouldn't be to word it in a round about way, and state pointlessly that, 'it is to control chakra'. It's like suggesting that to combine 'nin and jutsu' is ninjutsu. Every small part of the process that makes up CC is a part of it; understanding, skill and manipulation (all of which that explanation covers). Does it have to state it then when it has covered all the citty-gritty aspects? No.
Sorry, but when the automatic mode allows for the feat and the beasts knead the entirety of their own chakra for him, then the amount of his own skill he puts in is laughable at best. I mean, it's beyond preposterous that you deny this, given the clear cut dialogues between the beasts and himself where they even say that, "Naruto I have kneanded the chakra for you" or "hand me over your chakra" etc. That isn't outright enough for you?
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But of course, you'll deny it. I mean, if the guy despite KBs abuse cannot make a complete tech with one hand outside the mode at Vote II end, whilst the other guy created a tech that carries two techs together without merging them ... and Sakura can use the most precise form of CC and heal thousands remotely whilst tapping into another tech that uses such a high form of CC, then we can safely assume where Naruto's CC lies.
That is not what synchronizing even remotely means. If they were, then he wouldn't have had made equal number of KBs to create their techs - meaning he had to create bodies to make this work. The best you can state is agreement, as sync in a way you are using would be literally doing everything at the exact same time and in complete rhythm. For example, like Kurama's syncing of SM and Bijuu chakra or RSM perks and Bijuu chakra; they work excly at the same time without requiring any bodies. That, and only that, is syncing.
Anyhow, I am done with this discussion. It's funny, because I go to another forum that isn't populated by children and every single person, even die-hard Naruto fanboys, agree with what I have said about the mode. It's literally an established fact there.
But NB is NB ...