Quote Originally Posted by chinabiker View Post
I did some investigation on the GM offset as well.

- The difference from now to next time may be related to the zoom factor.
- I heard the offsets are random (within certain limits) but Google folks seem to have a muzzle

I came across this website. hey have a database which might be useful - haven't checked it out though.
The algorithm has been cracked and and open sourced. It's not that difficult to program into an application, but it's a PITA if you're just trying to fix a single track. I'm sure someone will come along soon with a web based form where you can upload a kml file and convert it from correct to China or China to correct. I started working on it, but got scared. The reason you don't hear more about it is to avoid a re-setting of the algorithm by the gvmt.

Cheers!
ChinaV