Im a big fan of Arthurs and I enjoy watching him but super feather is such a tough devision right now I just dont think he can make a real impact there at world level, he could maybe pick up one of the lesser belts but I dont see him dominating. I dont know how tough he would find it but I'd advise moving up to lightweight if he can. Theres decent oposition there but not quite as tough as Pacman, Barrera, Marquez etc. The lightweight division has still got some good fighters and it wouldnt be easy but id give Arthur a much better chance there.