Board Thread:Theories and Speculation/@comment-1783334-20150505045012/@comment-26345942-20150505070958

The sharingan didn't need 10 years to recharge. It was the genjutsu that needed a recharge time. (Remember the crow casting a genjutsu on Itachi "programming" him to save Konoha?). And remember that one of shisui's eyes was with Danzou and he gave the other one to Itachi which Itachi fixed in the crow. So, if Kabuto even found his body, he wouldn't be much helpful as it would be a body without eyes. And without his sharingan, an Uchiha is not as powerful as he would actually be.