I like using the stern tubes for that very reason, you're already heading away so it makes the get away a bit easier, so I though I'd try the same thing with bow tubes.
I just go deep and 1/3 back and just back out 'o there.
Works like a champ.
That way you keep all the escorts in sonar contact and see what is going on by plotting them on the map.
The biggest draw back is that you can't go back at 1 or 2 knots, so I just hit all stop and coast till 0 kn. and hit 1/3 again.
Magic