My very first mod was about more powerfull torpedoes (
Critical hits for torpedos which changed damage to 100-400), since I found very unrealistic the need of 3+ torps for each merchant and 2 for DDs. Now with FX_Update is almost 1 torp 1 ship.
No I´m going to do the opposite and give this mod a try

. Will report soon.
EDIT: you may split this mod in two also, one for torpedoes and one for shells.