All it would do is allow bombers to get some altitude before hitting the CV, and give the fighters a larger window to distract the AA gunners in. Personally, I think CV attacks will continue as normal, only you add 4 more ships, 3 armed, or replace your destroyers with the lighter armed D.E.'s and unarmed LCU.
You're pretty much shooting yourself in the foot as far as base taking goes. CV's have a hard enough time as it is.