I have often wondered about something like the KaBar Warthog. Short, thick, flat spot on top for whacking with a log to use it as a splitter. Everything the British Mod4 has, plus a sharp point. Maybe someday I will find the $$$ to buy one and try it...
http://www.ka-bar.com/cgi-bin/product_detail.cgi?product_id=70&cat=2