The problem is, the ack umbrella is magical appearing ack... with no regard for line of sight or any other considerations.
It may just be luck or perception, but the puffy ack is far less of a pain in my bellybutton that it had been 4 or 5 months ago.
I shadowed a task force last night just barely popping in and out of range of the puffy, and it orbited it in a CHog for 20-30 minutes before the main fuel hit it have given me forced me to return to base (I ended up running the entire thing on drops.)
The 3 dozen or so times I have gone in on CVs recently, the 5" guns are the real danger... if there is a player in them that knows what they are doing you can forget about trying to race in past the fighter cover in anything larger than a fighter.