Hi Peter,

I have this unit and I really like it. When you complete a ride, you can download the data in many file formats. If you save a kml file and open it in google maps, the coordinates will be correct but the maps will be slightly offset. Satellite view will look correct, but the map view will be a little off. If you export your track as a text file and then open it in Excel, you can subtract .0025 degrees from the latitude coordinates and add .0051 degrees to the longitude coordinates. This will line up perfectly with the Chinese maps.

Here is an example, you can download this KMZ Offset Example

Let me know if you have any questions, I've been using the 1000P for a long time.

Cheers
ChinaV