I don't get it .. why should be usage of TA limited ?
IRL in peace time this can be due a risk of losing the array. You have lot's of things in the sea .. which you don't see (ie hear). But at the war time ? Risking to loose array compared to risking to ignore enemy sub - there is a clear answer.
Baffles masks, that's right, but good captain knows it and changes course often. I ususaly do slowdown to 5kts (to enable hull sensors), 90 degree turn, (to scan whole circle with all sensors), then turn to orignal heading. I use TA only for distant tracks. In 'busy environment' can autocrew easily clutter your display (and audio reports) with ambigous tracks (especially when there is lots of new and loud contacts like torpedoes and CMs).
You also have to pay atention to keep your TA intact (and not touching the bottom). When I know where the targets roughly are, then I usually retrieve TA. It gives me more freedom - one less thing to worry about. In dense situation, you can get much better data from UUV.
On the other hand, on large distances, TA is priceless, of course.
Buffles or not, you can't sneak upon sub, which suspects there is somebody sneaking upon it.
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