Not so, guys. Wider emans you need more weigh to push the extra friction. More possiblity of hitting bone. There are less planing and tuning issues with narrow heads simply due to less surface area. There is more game killed with heads measuring 1'- 1 1/4" wide than all other heads put together. It's always been that way. The wider cutting head will kill an animal maybe two seconds quicker, but only if it's put in the right place.