I've been tweaking my escort and trying to different weapons types. I know there are some torpedoes that don't work with torpedo spread. But, I'm having trouble remembering what they are or finding the info again.
I know it works differently with tricobalt torpedoes and I don't think it works at all with Hargh'pengs. Did I remember that right? What about the others?
Spread works with all torpedoes except Har'pengs and SOME other uniques, such as (IIRC, don't quote me) the Breen Cluster Torpedo. Naturally, it doesn't effect bioneural torpedos either.
It does work with tricobalts, but only fires one torpedo per target, so if you only get one target, it won't really do anything. If they're close enough however, you will hit them with splash damage from other targets.