OK.
I was going to try TM but it stressed (in the thread TM) that it was very realistic and although I have been playing SH2, SH3 and SH4 for a number of years now, I have never been able to break myself away from the ease of just selecting a target, setting the torp depth and speed and then just firing.
Basically, I have never used the TBC to manually fire a torp.
Maybe I should take the next step huh??