Hi Gunter, another way to make a spherical spiral is to take an arc and run the Transform > Deform > Twist command on it, see here:
http://moi3d.com/forum/index.php?webtag=MOI&msg=8144.1

- Michael

Hi Michael,

That worked, yay! And super easy.

I think the problem was I wasn't twisting enough and so It looked like the spiral was on one side but with a much greater angle of twist it's in the middle.

Many thanks as always!
Gunter