A variation on Websters improved US torpedoes, less explosive power but larger damage radius.
http://www.subsim.com/radioroom/down...o=file&id=4380
1. UStorp125 - same explosive power as stock, but with damage radius increased to 125%.
2. UStorp150 - same explosive power as stock, but with damage radius increased to 150%
3. UStorp125plus125 - Explosive power 125%, damage radius 125%
4. UStorp125plus150 - Explosive power 125%, damage radius 150%
5. UStorp135plus175 - Explosive power 135%, damage radius for a really really big hole. Use with caution, inside 1000 yards you can get damage to your own sub.
Comparison shot with stock MARK 14 and the number 5 135plus175 mod;
My preference is for 125plus125, equal to Webster's lowest V1 torpedo but with holes 125% bigger. Spreads out the damage more, but not to the point of sillyness.