I've been playing with Moi recently and it has thankfully restored my faith in nurbs. Although I'm no expert in nurbs, Moi makes the process of re-learning pleasant.

I do have a question though. I'm not sure how to approach a shape I'm trying to build. It hugs the surface of a sphere, which complicates things, although I think it's one of those shapes that, when done, would teach me a great deal. I've attached an image to help illustrate what I'm trying to achieve, it's the dark grey shape.

Any and all help appreciated.

Cheers.