Summer 2012 I will do the Transamerica Trail + Sierra Cascades + 1st Section of Southern Tier.
Reason for 1st section of Southern Tier is due to my departure airport in Pheonix, AZ.
3 months ago I ordered all the maps and had them shipped to Europe. Except for the 1st section Southern Tier: I had this map already of course.
Then a few days ago I realize the map is so old that no addendums exist online anymore.
The map is called #BC-1710 99D
which indicates a print from 1999 I suppose.
Further researching I see that there is a heavy change of route on the first part leaving San Diego:
Whereas the new map closely follows I-8, the old map stays close to the border (HWY 94). Both routes rejoin in Boulevard, CA.
1. Is it possible to get an addendum for such an old map?
2. What is the reason for changing the route? I remember the HWY 94 as being very quite and peaceful.