that was really good hotsuma...
i can see it like that.
and with your question about the rasengan i think with sasuke hitting him in the chest/stomach, it mad him retract a bit and left the scratch...
think the tree when he was training, when jiraiya did it...(slowly) it scratches at the tree first then it shoots through...i think it only just got to scratch his forehead but didnt get to shoot through from the hit in the chest/stomach..