I tried to change the general range to 30 yards also, but it would just stand 30 yards away from the mob and not use the ability. Cloak and Dagger did not exist before 5.2 and therefore Ambush, Garrote and Cheap Shot only had 5 yards range and still does if you don't use Cloak and Dagger. I think that is why it's not working. Except if you do as I did.