With apologies if this old news: Three things I did not see mentioned in this thread about GE.
After you make a GE Path plot and save it, you can put the little hand over the path (now in red), right click, select Elevation... and when it shows the elevation profile, move the cursor down on the elevation profile. This will put an arrow on the path above somewhere. By moving the hand across the profile at the bottom of the screen, the arrow moves on the map and you can tell where the mile marks should come out. (Kind of because of tire expansion and 1.001) Quite handy when planning a ride.
If you right click the plot and select Properties, you can immediately adjust all the points. You have to be careful not to click and drag or you get spurious lines you have to erase. This means going to the compass arrows at the right side of the screen to adjust the view.
Also you can save the file as a .kmz and send it to people with GE and they can adjust points themselves. I like this because it is much, much fast than GMapsPedometer for making adjustments. But you can't relax or you will have red lines all over your map!
Oscar