The SoDaks and NCs screened the carriers because the majority of the time, the CVs weren't running at 32 knots. Those speeds are required to launch and receive aircraft. No where has it been logged that these ships were capable of 30 knots. Even at trials, with minimal stores loadouts, they only managed 28.7 knots and 28.4 knots, respectively. Might I suggest some reading, American Battleships of WW2 by Dulin and Gharsky. Pretty much the definitive work on US fast battleships.
The fleet would, in essence, circle the wagons when carriers launched a strike. The carriers would speed up, turn into the wind, and those ships that couldn't keep up would remain on their intended course, or on a course that would allow them to rejoin the CVs once they returned to their course.
If you read any ships' logs that screened the fast CV groups, you'll see all sorts of references to this practice.
My point is, our CVs always operate at launch speeds in game. So, we either have to speed the BBs up, or put more wind over the CV decks and slow the Task Groups down.
Most decorated ships in the US Navy:
USS Enterprise (CV-6) - 20 Battle Stars, Presidential Unit Citation
USS San Francisco (CA-38) - 17 Battle Stars, Presidential Unit Citation
USS San Diego (CL-53) - 18 Battle Stars
USS Minneapolis (CA-36) - 17 Battle Stars
USS New Orleans (CA-32) - 17 Battle Stars
USS Buchanan (DD-484) - 16 Battle Stars, Presidential Unit Citation
USS Maury (DD-401) - 16 Battle Stars, Presidential Unit Citation
USS Saufley (DD-465) - 16 Battle Stars
North Carolina was the most decorated battleship of WW2 with 15 battle stars. She did not, however, receive a Presidential Unit Citation.