i love the t-1 torpedoe...yes it has faults..but i like the variable speed settings...as i run the type 9 boats..b-c"s i do most of my hunting at night..i very rarely use differnt loads..but i do keep all my acoustic torps for speical events..like escorts that won't go away..
I'm sticking to Steam, mainly for reliability and range.
Most of my attacks are at night so bubbles don't matter. And with the range of these torps, you be well down deep and gone, b4 any escort arrives.
I love steam fish for attacking merchants. Even at long range (and its rare that I ever attack beyond 1500m, 100% difficulty) Its too late by the time they see them. Also with the extra speed it makes a hit more likley at any range than with an electric. Less traval time means less time for your shot data to deteriorate before an impact.