Just clarifying, but regarding scale; do they have to be 1.0 when doing object of-set, because I've seen that having them ...

posted to: Array Modifier
Just clarifying, but regarding scale; do they have to be 1.0 when doing object of-set, because I've seen that having them set to the same size (if the mesh object is 1.5 then so is the empty or other reference object) also works, is this reliable or is just having 1.0 a better option?