The head weight on the new Fiskars is 4.03 lbs compared to 4.25 for the old head. The old head also has more flare to it. The overall length of the old head (cutting edge to poll) is a bit longer. The distance from the cutting edge (which is taller as you pointed out) to the point of maximum flare is slightly shorter on the new head. Also on the new head the flared portion narrows more rapidly as you go back from the cutting edge. This may offset the wider cutting edge when it comes to penetration depth that some people are worried about. You will have the added friction of the wider cutting edge but less friction from the sides of the head. To get a really accurate comparison between the new head and old head we need someone to use the old 28incher and the new 28incher and give a report.