I m realizing that doing a 4 point sphere with the rhino command prompt gives a much more accurate result than using grasshopper.
Using the same list of Grasshopper generated points:
Grey sphere that actually goes through all 4 points: Bake points => switch to rhino = > do a 4 point sphere
Red sphere that doesn’t go through any of the 4 points (much smaller radius): Grasshopper nodes as seen on image
Anyone know why this is happening?