Multifaceted
Firewood Hoarder, Axe Enthusiast
I guess I jumped the gun a bit there. To be more clear, rounded bit profiles certainly did and do exist, but often do get exaggerated by not grinding down the cheeks. I prefer more of a slight curve, I find them less sticky than heavily rounded ones (I don't recall seeing any like that recently in this thread) - however, so long as the bit has an even degree of angle, i.e., the center of curve isn't wide or greater in angle than the hell or toe, then it shouldn't really impact performance, though, depending on what or how you're chopping, your milage may vary...