Yes, where multiple ships are concerned you must make several deals with the devil to shoot several. The further away from 90 degrees from the track you get, the smaller chance for a hit and the less error tolerant the solution becomes. Furthermore, if you shoot from ahead of the track the ships are more apt to see the oncoming torpedoes and only need to turn a fraction of a right angle to turn into the oncoming torpedoes and make them miss.
Of course you can sit 90 degrees to the track and use Mark 18s--too slow and THAT reduces your chance of hits while keeping them from seeing the wake.
Dick O'Kane, and I agree totally, said that we get darned close, target ONE target at a time and put her on the bottom. Again, simplifying the process gives maximum success. Return and target another. Repeat until the escorts split for home because they have no merchies to herd.
Yes I've seen fancy videos of multiple ship targeting and they look cool. But in practice you'll come up empty more than bag two or three. One premature explosion with six torpedoes in the water targeting three ships and all three ships go crazy and you waste a great portion of Uncle Sam's money.
Dick O'Kane said that when you have to schlepp back 6000 miles for a torpedo refill you aim every shot and keep it simple. Limit the fancy stuff!
