Terminal TMA?

[MarkShot]

I am trying to wire guide my fish to the target (sub) after the initial shot.

I start with a good, but long distance TMA solution and DEMON. Although I may not have an ID for the target, I have a correct TPK from TMA empirical testing.

Now, the target runs and maneuvers.

I am finding that I often mess up the TMA for the target. Given the speed with which everything happens and that TMA only receives a sonar LOB update every two minutes ... I am having trouble getting the right solution.

It seems I often deduce a turn in the wrong direction, because in this rapid time frame with the target on my beam either of two turn solutions will work. I have been assuming the target will turn away from me, but that doesn't always seem the case. I generally know that I have got it wrong when the target slows to check its status and does not continue to run. By then, my fish have missed by a wide margin.

I have been hesitant to change course to get another leg as I only have the target on faint TA and feel things are happening too fast to deal with stabilizing the TA and the time which that would take.

So, how to handle this terminal TMA? (btw, this is actually SCXIIC in an Akula)

Thanks.