Lui is not a natural half. He's a 5/8th through and through. I don't know where this Lui is a halfback idea came about from?
I agree he is a better five eighth than half. However we have the best #6 in the NRL so as others (eg Thurston etc..) Lui has moved to #7 and he is very good in this position as well. He is the best halfback we have and will end up being among the top 5 in the NRL. I for one do not see Moltzen ever getting the starting #7 at the Tigers if Lui is fit. Even if Lui was injured, I would be tempted to start Miller at #7 instead of Moltzen. Moltzen best spot in our squad is #14, if he doesn't like that he can go elsewhere.