I hate hard splines in CAD!! I have been trying to learn devFus. But it uses hard splines. That means the line has to pass directly through the control points. When I put the control points where I want them, the formers look like they were designed in a pretzel factory! I'm sure the Skunk Works didn't have this problem with the SR-71. Why can't someone create a CAD program with a "French Curve" feature? Where the desired curve goes through the average of the control points, matching at the first and last points.