[Kromm]

We feel that if you can't interrupt an Attack or Ready without a Wait, you shouldn't be able to interrupt a Concentrate. Concentrate is to mental actions what Ready is to physical ones -- nothing more. We want Attack, Concentrate, and Ready to be equals: you Attack to use Innate Attack, Concentrate to use Mind Control, or Ready to turn on Invisibility, but each is one maneuver, its results happening the turn you choose it.