Random tangent, but I’m glad you joined the discussion! Maybe you’re sick of curves by now, and I realize you said you left out many topics, but I was curious if you’d considered the quadratic B-spline or any other quadratic curves? I feel like we always talk about linear and cubic and hardly anyone considers quadratics. There are good reasons for that, but I like the order-2 B-spline for it’s continuity and because it’s halfway interpolating in the sense that it interpolates every midpoint of the linear skeleton. It’s slightly smoother than the Catmull-Rom (which is a bit lumpy IMO), and I think the continuity is equally good, right?