Same chakra signature=/=Chakra inside or outside of the body. The chakra itself isn't different. The location of the chakra is different so your example doesn't hold. That simple.
Meaning the chakra is coming from inside his body, to the outside of his body.
Once again, that means the chakra is coming from inside his body, to the outside to form Susanoo. Why do I have to explain this again?
Chakra inside the body is not chakra outside of the body. Location is completely different. Minato teleporting something outside of the body doesn't mean that you should assume he can teleport something inside of the body. At the end of the day, it is that simple.
Lol, what's the difference? Are you serious with this nonsense? I really have to explain the difference between this:
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And this?
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The sheer fact that it's inside his body while Susanoo isn't is the obvious difference.
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Manga has already told us how Minato chooses what to warp, any assumptions on your part are invalid.
Minato has told us how he chooses what to warp. Whatever touches his chakra or whatever he is touching is something he can choose to warp. That simple, please stop trying to over complicate things and add functions to the jutsu that clearly don't exist.
If chakra signature was how Minato chose what to warp, then how in the world would he teleport things that have no chakra? Lol.
I don't think you know what implicative means, because
nothing in this manga even begins to imply that Minato uses the chakra signature of the target to determine what he wants to warp, only your baseless assumptions.