DoomCaster

A while back when the EPPs just came out I think I remember finding somethign about them. I thought one said somethign a/b Focused Accuracy and slotting it. Is it like having an SO Acc enhancement in everything unslotted and like 2 or so with 1 ToHit Buff enhancement or what. I can't remember what it was and having trouble finding where i found this at at that time.