Kaluen,
You'd have better luck chasing a Ferrari on foot!
TF's are overrated anyways... usually 5 DDs and some lame-o warship, maybe a Bogue Carrier or Cruiser. Thats what the ones I have stumbled across would contain or even worse all DDs and or Torpedo Boats <GaG>.
Be happy with convoys and your singles. Chances are you may bag a BB or other warship steaming in with convoy, especially earlier in the war.
