The debate seems to be becoming whether to just modify the DnD combat system or throw it out all together and start over. On the one hand, you have dividing hit points into personal body space and armor body space and otherwise keeping everything normal. On the other hand, you go really deep and start considering weapon hit points, hardness of armor versus hardness of weapons, shield skills, method of defending against attacks (dodging, parrying, etc). Its beginning to sound more like the latter. Perhaps a scheduled melding of the minds would be in order?