Yeah a full flat would maybe be okay !

I still kinda like the idea of a 3/16" sabre grind though because they work better when battoning. Once the knife is in the wood up to the spine there is clearance around the rest of the blade, this is why the sabres split so good. My old Dumpster Mutt was the perfect splitting wedge.....just a shame it didn't cut half as well as it split or I'd still have it !