I know I saw a UBL optional rule somewhere on the Geek where you factor in the TORP spread (X-1 I think?) and do one DR. I think I will adopt this same formula for GL. Anyone else do this?
Yes, in the U-Boat Leader optional rules, you get the DR bonus for each additional torpedo in a salvo, but you only role once, so all the torpedoes are taken together in a single attack. It make the torpedo attacks more 'realistic' but you may find you want more bang from your attacks.