do not change speed, course, depth when making the TMA
use all your PASSIVE sensors not only SONAR (ESM, peri, active intercept)
focus on maximum 3 targets at the same time
try to classify your target ASAP then determine his speed with the DEMON
do not use the first line on the TMA (you just need 3 lines to make your TMA) so in 8 minutes you can pinpoint the target (error < 250yards with some practice).
If you understand french take a look at this video (even if you don't you can watch it)
http://www.mille-sabords.com/forum/u.../TAM-Tuto.divx