I don't have Broken Steel, and I tried to make Escalator to Heaven and Devil's Highway. For example, with the Devil's Highway, the actor effect should result in "GetActorValue Karma -1000", and using this in a perk, that his requirement is having 250 karma (+), grants me 1000 karma, and for the Escalator, it grants me the opposite, giving me -1000 karma, although I don't find the problem.