Well the flying thing sess is not a dog demon. He is or hes half Phantom dog demon. His fur he carrys aloughs him to fly so I guess it was a fussion of that and his phantomniss. As for the terible speed. You know how jakken was sick and everything, and there by MT Hakurie. Well Sess has been toughing it, hes very week and vunarable right now, sad really. Most of his demon powers are being purified. With that said I actually am starting to think that sess is much younger than I thought, and come to think about it I do beleave I know Inuyshas age or about his age, and no its not 16 or some thing -_-.