First off, a saw isn't needed to split the sternum of a deer. It's soft enough to just cut right through it in seconds with the edge of the knife. A saw would be very handy for cutting off the legs, though, since cutting at the joints still leaves a lot of leg sticking out.
Second, I don't like saws on the spine of a knife either, for most of the same reasons mentioned. Too thick & short. (granted, a skinning knife doesn't have to be thick, either.) If you want a saw always at hand, I think it would be far more productive to have a seperate thin saw carried on the same sheath as the knife. Just take an actual saw blade and attach a pistol grip style handle of some sort that isn't too bulky, and its own pouch can be made with another flap of leather on front or back.
If you do this, a simple way to incorporate a kerf is just make sure the primary grinds go all the way to the spine, so that the spine is the thickest portion of the knife. If you only do a saber grind, then you have to start bending the teeth to the sides or whatever so they clear a path for the rest of the blade.
Justin
that would help but
for a true working and fully efficient tooth we need a full functioning tooth,
most hand saws have what they call a scratchier tooth , not as efficient and try sharpening it in the field if you have to..
as you mention make them, you basically don't have any set to speak of and no rear clearance of the tooth's leading edges this is a big part of what causes binding, and in, say, soft wood you need even more set in it this is proven in saw chain sharpening. more angle set for soft wood and less in hard wood..it gets more complicated than that in the was a saw chain works but it's the jest of it..being a Chain saw dealer and repair shop for over 20 years helped understand this, I've sharpened many of them..
the teeth I made on the ESK, these are made to mimic full chisel ground style chain saw teeth.
the point of each tooth is higher than the top plate ramped up to the front and out past the rear of the side plates of each tooth and past the body of the knife, always providing clearance behind and below the point,
if you guys look close, you'll see the tooth is bent out and also at an angle
a true set..which is not difficult to make..
I made the ESK so you would not have to carry yet another tool, ease of sharpening with a common chain saw file. this one I made for survival not as a hunting knife, it can be used as a hunting knife but for me a bit long for that sole purpose , as you say Justin, a saw in the field while hunting the saw is not needed..unless it turns into a survival situation..
the less weight and junk carried in a survival situation the better ,
it's what the ESK was made for.. Mal Stevens at The Maine Primitive Skills School
http://www.PrimitiveSkills.com/ teaches survival with very little in the field, guys take a look at what happens at his school to the students, it's very interesting,
he'll go on survival trips by himself for a week or so at a time and survive on what the woods have to offer only.
I listen to this guy and what he wants in A knife, built for him and the school..I just added a fully usable saw tooth and a little insight to this knife..
.. Justin don't think I'm in anyway getting on you here, this is just my thoughts and why I think this way..to get the best out of one tool, if we are going to bother putting time in them why not get the most out of it....
just food for thought for the guys only..
BTW the blade steel on the ESK is only 5/32" thick