Just installed NZQN v1.0.1 and don't see a lot of the spikes shown in the pictures from other posters, but I need to mention the massive spike that shows up beginning at about 4.5 nm from the airport rising out of the small (tri -split) pond just to the north of Runway 23's threshold. The spike stays visible as one gets further from the airport.
Here is a pic:
Hope you can fix this one since it is a real immersion killer. Thanks.