I've seen it suggested that a few lies were thrown in so it couldn't be figured out. Somebody was claiming that the playing abroad experience was similar to Danny Higginbotham's spell in Holland - i haven't read any of that so i can't comment on it but i think they said Kitson and Higginbotham were friends so he just used his experiences to add more to the story.
Anyway its definitely him. He's even on the record as saying he might go into writing after his career is over and so much of it matches up. These two videos prove it for me.