Setting the AoB would involve going to the AoB dial and resetting. We don't have time for that. What we WILL have to resend is the periscope shoot bearing. You'll re-aim ahead of the target, hold the periscope on that new bearing, click send range/bearing and wait for your new juicy part of the target to cross the wire, at which time you'll send your regards to the Emperor for that part of his ship.
So it's shoot the stern, leapfrog ahead (click), shoot MOT, leapfrog ahead (click), shoot the bow, watch the fireworks.