Appreciate you providing your experience on this, and I hope I can clarify a few things you may be interested in.
Sector AA is actually in the process of being redesigned right now. It may take an update or two, but should allow more flexibility in it's use. We'll talk more about it in a future Dev Blog.
AA damage changes are currently being tested on PTS. They will present more consistent damage to a squadron and impact overall AA effectiveness.
CVs do not have endless planes and are vulnerable for a time after recalling them. They also pay a time penalty for doing this and it makes them less effective in many situations. Also our recent dev blog did point out we did put in a soft cap of CVs at Tier 10.
What tactics are you currently using to deal with CV attacks?