Hi Burr, well once you have moved a point it is supposed to stay in its deformed state after that. If you see it reverting to the square bounding box type cage (that's the one for the precise sphere with those "fully multiple knots" in it), that sounds like a bug. Do you have any steps you can show to repeat that?

One thing to note is that you'll only get the "smoothly deformable" type sphere points if the sphere is an untrimmed surface. If it has trim curves on it you'll get the bounding box like points.

- Michael