Duci, I'm giving this a try. Will let you know what I find
Edit:
I did the torpedo the bad guy tutorial (of sorts) and I found the mix to be pretty good. Basically 1 out of every four was a under runner or the magnetic pistol did not function. I had one that ran to fast. Don't as me how. This first of the four past the bow by a good margin. The remaining 3 were on target. With the solution the same for each torpedo the firsts fast should have been a hit. I did not experience any duds. On a second try I had a premie (calm seas). Two worked fine with magnetic exploder. The other was just contact and worked fine. Third attempt I had 1 under runner and the rest worked fine. My personal opinion, tweak the torpedoes just a hair worse than what you have here.