The problem is that to get a good solution you need to beam the target and run in lag. This means that
you generaly will hold a course which runs counter to the target and increases range.
Given a long range target as in the case you outline this is not a good position to attempt to refine a solution .
Some players will close the range at speed, while the torp/s run then slow and turn to beam and lag to work the TMA.
Of course if you launch a UUV at the same time as your torp/s then your options for manouvre are greater. Depends on range.
Futhermore if you close at speed the UUV will still give you excellent information. I am never without one or two pref.