Blast dubble: 1st thing most say when teaching it.Head to the middle of the chest as hard and fast as you can.
I knowI have heard many many times coaches say to use your head.To me for it to be FM he would have had to have ahold of the boys head.Than try to deliver a head butt.
I have never got head butted that I did not want to beat the crap out of the guy giving it to me.To me if it was FM the SH boy would have been mad.I think this should play a part in the out come.
You have 2 about to be full men here.I think they should be treated as so.If the SH boy thinks it was bad it should be a finished deal.But if the SH boy thinks this was the roung call That should be takken in to acount.Just like in most cases in law.
I have met the 2 young men a few times.They are and will be good men.I have no horse in the race but know if he would have did the same movment to my boy,I would just ask him what he thought.Cassed solved.

Charles Bradford