Thanks pitts.
But there's more than just a little bit of unknown to it. Like a lot of unknown.

DJ.
All the best for the operation. Give the nurses heaps.

Spiraling up? Spiraling down?. Who really knows. It depends on which maps you use.
These are the ones we use. Are they different to yours?

https://www.google.com.au/search?q=u...AUoAQ#imgdii=_