Interesting how much detail stays in at this altitude.

EDIT (So as not to ramble on in this Forum) regarding Matt's post below -
No it wasn't me on VATSIM but by gum you do get down the N Island quickly in this beast.
This was out of NZWR and I think it was 20 minutes all in.
2nd EDIT to answer Trolly below: It's a small rework by Bob Chicolo of the freeware ALPHASIM model.