Your thinking defensively !
I hope that we are talking positive aggressive TMA to achieve an accurate firing solution. Nobody said no turns - just dont give anything away easily (''injudicious') 'before you assess which tacking course/s (zig-zagging) will get you a solution before he does.
Yep there is a time and place for screwing his solution with speed, depth and course changes. I just like to send my fishes first on the money then I'll worry about fooling his 'solution.'
Edit: Anyway I risk predjucing my own MP so wont add any more to these Fleet course techniques . A Seawolf silently moves out into the estuary - to return ?