Here is a airfoil I have used a couple of times now. Is it any better for the L.E., probely not. But it was designed for slow speed ultrilight aircraft from the beginning. The Eippler 591 does a very good job for what it was disigned for. Exelent stall resistance, hi lift at low speed. If your wing cord is 60", and you want to fly faster than 70 MPH, this is not the airfoil for you.