With not much else to do? How about training?

(Time-Skip: Two Weeks Later)

Sasuke had spent the last two weeks training to extend the amount of time he can keep Gyūki's Cloak active, he found it was easier to do if he Allowed his Sharingan to Remain In its Two Tomoe Stage. He had regained a lot of his strength, but he was still hurting pretty Bad. He could barely hold his own against Kakashi, but refused to give up, which was how It came to be that Today Kakashi had tried Teaching him how to use the Chidori.

Don't get the wrong Idea Sasuke was an incredibly proficient user of Lightning-Style Ninjutsu, but he, as a Sarutobi, had a Natural Predisposition towards Fire-Style Ninjutsu. It occurred to Sasuke that if he couldn't master the Chidori, then perhaps he could create his own unique Style of Jutsu. Sasuke decided that since he was very Capable at Genjutsu, more so than Kurenai Sensei, and an Extremely Proficient user of Taijutsu, perhaps he could use the Idea of Fire-Style Ninjutsu and merge it with his Taijutsu Skills. He was one of the Few Leaf-Nin who could use Gale-Style, Lava-Style, Magnet-Style, Explosion-Style, and Scorch and Vapour-Style's. Now Explosion-Style could be an extremely useful addition to Taijutsu Strikes, since Any strike would have an Explosive Reaction behind the Initial Impact.

The Issue wask that while his Body had become much much Harder and His skin much more Tougher and Thick, his Almost Unrelenting Stamina had decreased as a Result, and while the Sharingan and Gyūki's Power had helped Limit the Loss of Stamina, it was a temporary Thing at best. He then Decided it would be wise to first Harden his skin with Earth-Style Chakra, because it was possible that He could lose a limb if he wasn't adequately protected before using an Explosively Powered Blow on even a large rock or Tree Trunk.

(Time-Skip: Eight Hours Later)

Sasuke was successful in his endeavour and theorised if He couldn't Gather the Lightning in nis Hand Needed for the Chidori, then Perhaps, as a starting point he could Flow Lightning-Style Chakra into his Hand before attempting to Gather the Lightning itself. Only then did he realise it may be possible that instead of a Lightning-Style Chidori, Gale-Style could be used as A Substitute, since Gale-Style Used Lightning it wouldn't have made much difference if it didn't Require Water-Style as well to become Gale-Style, and since Water could Conduct electricity, it could be even more powerful than a regular Lightning-Style Chidori.