any theories from you guys on why log splitter wedges are shaped the way they are? it seems to me that rather than have a straight vertical sharpened edge, the wedge would require much less force to 'start' the split if the front edge were to have a more arrow-point shape (not as pronounced, of course, maybe 10-20 degrees of tilt ). the force to start the split would be reduced by having a 'pointy' wedge. watching splitters operate, there is the initial 'pop' to start the splitting action, probably the first inch of the stroke, followed by the spreading action which takes much less force. i compare it to cutting a piece of steak with a knife. pushing straight down with the knife doesn't work and would require a large force, but using the point of the knife to pierce the steak is easy. i've seen forged steel wedges on splitters but they, too, have vertical cutting edges. but i have seen 4-way drop-on wedges that have the wings tapered back. why not the main cutting edge? any theories other that cost to manufacture?