Fast battlecruisers as carrier escorts

How would Hood, Renown, and Repulse be deployed if all three survived into 1942?

As the fast capital-ship element accompanying Britain's carrier forces, broadly analogous to Japan's use of the Kongō class.

The three ships could keep pace with carrier operations in a way slower battleships could not. Their role resembles that of the Japanese Kongō class, which supported fast carrier formations. Their heavy guns would protect the group against surface interception while the carriers supplied reconnaissance and striking range. A Kongō encountering such a British fast force would face an opponent built around the same operational logic but with formidable gun power.