I never even brough Konohamaru up, you did and his rasengan was far smaller then any other rasengan users. There are more than one type of chakra control and Naruto displayed more of them than Sakura. Shizune was not even shown when Naruto was passing chakra out but we got Kurama praising him of how skilled Naruto was, even surpassing both of his parents which he made sound like a big deal by how he said it. Naruto uses at least 3 chakra control techniques to give chakra, He uses the tree walking chakra control to build up the chakra amount, the water walking chakra control to release the set amount (precise amount) of chakra, and Physical recomposition chakra control to transform the chakra to meet the ninja's chakra. Like how Kakashi use Physical recomposition to resemble electricity, Naruto use it to resemble a person's chakra and he does this in seconds with large chakra amounts and with the slap of a hand
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There are more than 1 type of chakra control so to say it's the pinnacle and not the type of chakra control doesn't seem accurate. Many people talk about how Tsunade said medical nins have perfect chakra control but how can Sakura be at the pinnacle of chakra control if she had prefect chakra control unless it's not really perfect but great chakra control. Perfect means "precisely accurate or exact; being complete of it's kind and without defect or blemish." Pinnacle means "a lofty peak; the highest level or degree attainable".
Medical nins probably need precisely accurate chakra control because Sakura's chakra control mainly revolve precisions. It can be the highest chakra control of a type of chakra control but not going to refer to other types they work in different ways.
@Bold, Come on man, if you can't understand the significance of the Konohamaru mention, then this discussion isn't worth it. You called it advanced chakra controlling, it was to blow that agument out the water. Even if it's smaller, you're claiming he's capable of superior chakra controlling. So yes, I bought him up for a reason. Sorry, you can't wiggle through this one. You're either gonna have to tell me that Konohamaru is more skilled than Tsunade and Sakura at chakra control, or drop the rasengan argument. You also neglected my point about Jiraiya. He was able to do it with one hand. You cannot possibly believe Kishi wants the readers to believe Jiraiya is superior at chakra controlling than Tsunade and Sakura. The rasengan was never particularly praised for its chakra control. You're simply judging it off it's appearance. Even though Naruto learned the
odama rasengan, he STILL had trouble manipulating his chakra for the kai technique. One would think if the rasengan was really that much of a feat of chakra control, then Naruto would have no problem with genjutsu kai, something Sakura could do since part 1. In fact, Jiraiya had to teach Naruto genjutsu kai
after learning the rasengan. Utilizing genjutsu kai; one needs to have excellent control of their chakra, learning how to stop it, then applying a greater amount. Again, something Naruto couldn't do after the learning the rasengan. He couldn't even do it proficiently after learning the
odama rasengan. At this point, it's just refusing to accept the obvious;
rasengan isn't remotely a great chakra control feat. I reiterate, Sakura could do it since part 1. This rasengan argument really needs to sleep, even with its variants (TBB, RS), we don't know if it comes anywhere close to the chakra control Tsunade and Sakura accomplished. The rasengan argument is not persuasive to those who actually think about it. Hell Rock Lee can open his chakra gates, are you going to constitute that to greater control than Sakura as well? You're basing it off appearance. To sum it up, we don't know if rasengan is a
better feat of chakra controlling. Due to what I listed above, I'm inclined to believe it's far below what Sakura and Tsunade can do.
@Underlined, I'll get that to later.
@Red, Kakashi and Shizune praised Sakura for her chakra control. They made a big deal about it. No point here.
@Blue, What? First of all, the fact that Shizune praised Sakura for her precise chakra control, despite knowing of Sakura's strength (which Kakashi commented on the skill of control), says a lot. It's even more advanced than what Kakashi thought was impressive. Shizune is already aware of the chakra control Kakashi commented on, yet praised Sakura for the Yin Seal. Yes, that says a lot...
Yes he can give it out in large quantities, because he has large amount of chakra. We have no idea what's going on when Naruto matches chakra with his recipients. The rasengan destroys, the chakra scalpel cuts. Yet, Sakura can do the Mystical Palm, which actually heals. She's just not forming chakra and applying it to wounds, hoping that it heals. There's skill involved, something is going on there. I know that Naruto can match his chakra with others, that's all I know; there's some level of skill in doing it. More skilled than what Tsunade and Sakura could do? We can't say that.
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. lol she doesn't even have a visual of what she's looking at

. She's
somehow using the chakra to locate the poison, then she
somehow removes the poison without effecting anything else. She
somehow heals flesh with the mystical palm. Naruto
somehow matches his chakra with others. I'm not convinced Naruto is better at chakra control...give Sakura the 9tails and a large chakra pool, and who knows what she can do with it? Give it to Tsunade, and who knows what she can do with it?
Pinnacle is used to convey her level of chakra control, it doesn't get any higher than this. She can learn more difficult techniques, yes, but she's at the pinnacle of chakra control. It doesn't mean she's perfect in it, just that she's reached that top level.
Kishi's portrayal is clear. Sakura and Tsunade are the best at chakra controlling.