I use the Ken Onion Work Sharp with blade grinding attachment. Pricey but well worth the money. You could get the same results with a Harbor Freight 1" belt sander at less than half the price of the Work Sharp. All the belt sharpeners put a convex grind on the edge which is more durable than a standard V grind.
A retired logger told me once if it takes 3 hours to cut a tree down 2 and a half of them should have been sharpening your axe.
I have one of these for my Racing axes
That's the one I just made one my self.Link?
I really wanna wanna one
This guy.
That's the one I just made one my self.