Dennis - well, IH changed the design to a 4 paddle so there is an assumption it must be better. If you look at them you'll see the auger on a 2 paddle brings the snow from each side to the center at the same time and onto one paddle which throws it up and out the chute. The 4 paddle has the auger flights and paddles 90degrees offset side to side, so that the snow from one side comes to the center onto one paddle and up the chute, at a 90 degree offset from the next paddle throwing snow coming from the other side.So which auger is better, the two paddle or 4 paddle? The one I'm currently using has a beat up 2 paddle and it does pretty well in any kind of snow. I bought a 4 paddle recently in much better shape but well weathered. Haven't had a chance to go through it yet.