Yup it has been said before, some people claim it does not happen, others cannot fly anywhere near a CV without getting killed rapidly even in wildly evading fighters. Buffs just sail through it mebbe take a hit and keep going, but surely buffs are bigger, slower and a high threat to CV,s so would be a priority target.
Anyway Cit do as I do refuse to fly anywhere near CV's its much safer

BUT if you must and you obviously suffer the same as me then keep below 3k and the flak stops, you just gotta avoid the weenie guns, oh yeah sorry they kill as well but at least they dont follow you out to 10k or stuff like that.
Basically tho anywhere near a CV and the CV provides an unpenetrable umbrella for the defensive fighters to grab whilst forcing you below it.
Now if the flak hit its own planes as well or stopped firing if you are near a enemy plane then I could live with that.