Exactly. In this story, the explanation of how Itachi became so powerful is because he studied, analyzed, and actually /learned/ the various techniques, and
understood /why/ they worked, how they interacted, and how to create more.
Most of the Uchiha, along with Emosuke and Kakashi, just use the Sharingan to copy jutsu and don't give much thought to what they're really doing.
So you run into situations like Sasuke's fight with Lee, where the Sharingan can see what Lee's going to do, copy his moves... but Sasuke just
isn't fast enough to take advantage of it, and doesn't have the technical knowledge to work out a different counter-move that he /is/ physically
capable of.
--
Sucrose Octanitrate.
Proof positive that with sufficient motivation, you can make anything explode.
understood /why/ they worked, how they interacted, and how to create more.
Most of the Uchiha, along with Emosuke and Kakashi, just use the Sharingan to copy jutsu and don't give much thought to what they're really doing.
So you run into situations like Sasuke's fight with Lee, where the Sharingan can see what Lee's going to do, copy his moves... but Sasuke just
isn't fast enough to take advantage of it, and doesn't have the technical knowledge to work out a different counter-move that he /is/ physically
capable of.
--
Sucrose Octanitrate.
Proof positive that with sufficient motivation, you can make anything explode.