Actually the problem is not the shooting method. The problem, for me at least, is knowing/getting target speed and course. Then you can "shift" firing methods as the actual situation dictates. If there is no flanking DD near by, O'Kane is great, if it is "out there" and a more "angled" approach is dictated, no problem as long as you have speed+course and the opportunity to fire before you get detected.
For convoys I must admit I am a victim of "auto targeting maximum tube utilization syndrome" (
!). When I played on "auto" I tried to get "in" the convoy and perpendicular to its course. With "auto" you could "shoot the ducks" from both the bow and aft tubes and score a tonnage an actual WW2 skipper would need 6 months to get. You could get rammed during the attempt of course, but the game is soooo forgiving when it comes to that! After getting that bad habit, I still pursue the notion of trying to hit multiple targets in a convoy. 0-gyro angle torpedo firing allows for that
as long as you know that god damn speed+course. I must admit though, that, eventually, many times I simply "stad" a target that seems more "hitable" and get the hell "outa there" as I am already pinged, and my target speed+course estimation was "rough".
So for me the "challenge" is not the actual shooting but having collected the appropriate and valid "numbers" (data) before. Now, I'm not sure if that's the mark of a good skipper or a typical accountant!
And it is that aspect of the game I'm trying to "explore" (whenever I find the time).
.