Might be reaching here, my understanding is grasshopper capability is still armature at best but is it possible to create a system for combining and averaging several closed curves into one?
Check out Pufferfish plug-in. It has an “Average Curve” and “Weighted Average Curve” components. I have a little video of the Weighted Average Curve here: https://www.instagram.com/p/BaeN7EqFfQL/?taken-by=ekim.royrp
Thanks, that worked perfectly. I needed to recreate all the curves, couldn’t quite get my head around rotating and flipping the old parts to keep it from twisting but I reached my end goal.