Well, no update in a little over a month, but I have been working on a macro to convert a linear spline to control points for use in a bezier spline, which seems a bit easier to get what I want than a cubic or quadratic spline.

So here are a couple pictures to show where I’m at. The third one is more of an attempt to illustrate the macro I was putting together. Blue points are the input array, red points are the bezier spline control points.