If I remember correctly, Peter has written a couple of posts about the sempai-kohei relationship here on Aikiweb. They are worth finding. If it wasnt Peter, my apologies. My memory is not always the best. Still, in areas like this, I would make sure that I was on very, very solid ground before debating either Peter or Chris. Just my opinion.
Not to worry, I am here on just as solid ground as they are. But I appreciate your concern.