Q drop 4360 Call the ball. Aircraft landing on a carrier follow the "ball" https://www.qmap.pub/read/4360 When aircraft land on a carrier they watch for the "Meatball" to line up for landing.  I think call the ball means something like If you see the ball where it belongs you make the call.  That is my guess of course. Is Q saying whenever you are ready make the call? https://www.youtube.com/watch?v=M-t5IW2RbPU