My opening post was for lengthened, slightly faster Centaurs. I was seeking a fast, single-hangar British carrier without an AFD, so I had to start with Centaur. I suppose it makes sense that every British fast fleet until the Audacious had either two full hangars or an armoured flight deck. The Audacious of course combined both - an ideal opponent for IJNS Taiho and her intended successors.
I fully agree with you that the Centaurs as built would be more limited than even the Illustrious. My thinking was that without the AFD the FN and FAA might have altered their aircraft and tactics, such as introducing deck parking, weather permitting.