The funny thing is that I'm pretty sure you typed all that with a straight face.
Anyways, Sasuke absorbing "almost all the chakra" Kurama molded to Naruto means that he now has more chakra to amp his jutsu with, this is shown when Sasuke adds Enton to his Chidori instead of it being a regular Chidori. This is simple stuff and I shouldn't have to explain something so obvious but I'll toss in a scan just cuz.
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Also Sasuke had the advantage of downward momentum on his side and
still couldn't best Naruto with a base Rasengan or if it makes you feel better, a Rasengan with a tiny fraction of Kyuubi chakra.