When a drain affects a multipower slot, does it work against the active points in the slot, the real cost of the power in the slot, or against the cost of the slot.
For example, suppose someone has a multipower with a 60 point reserve and one of the slots was a 12d6 EB that costs x2 endurance, an active cost of 60 and a real cost of 40. It is placed in a fixed slot that costs 4 points. In order to completely drain the power, would it take 60 points, 40 points or
4 points?