This is second set of outriggers! You see when we decide it is time to test the "Groundloop" adjustable feature on our Airmaster prop, if you side load tailwheel it wants to twist. Some say that it bends mounting screw way before it should. Another creative way of adding tailweight, a set of outriggers for tailwheel spring that sandwiches it to bottom plate. Don't want to make things so strong it trashes glass too easily though.