I think this was a very cute idea and I like what you're doing with it. I did notice one thing if he new these girls before Hogwarts wouldn't he have known their parents? I also would have liked at least a few highlights between the kids meeting and Hogwarts. I can't wait to see more of this fic. The multiple endings for yr 1 was neat.
I'm glad that you're enjoying the story.
I don't think I'll be doing the multiple endings again for a while. I'm not thrilled with some of them; I may have tried to do too much.
As for the parents, I have tried to introduce some of them, but I didn't think it was really practical to try to visit all of them. You'll be seeing more of them during and after Year 2.