They are designed to tip your machine toward you so it sits at an angle. Imagine your machine tipped from the back and you think it will fall toward you!! I use a skinny 1/2 inch board covered with a non skid rubber material to do the same thing. The "tip" should only be a few degrees. Try it and you'll see what a difference it makes on your shoulders and neck! :lol: :lol:
HAPPY NEW YEAR!