What is the difference between high lift and regular lift blades? I use "gator" blades on with my mower with regular lift. Whenever I mow some type of "junk" grass, I am continuously mowing again. This is not very productive. I change to my high lift blades, which are not "gator" and mows with one pass. Are the "gator" blades notorious for this? Can you buy high lift "gator" blades?