Configuration files for Mexico surrogates

Hello everyone,
I am preparing surrogates for a domain. For the surrogate of Mexico, I used the shapefile from https://gaftp.epa.gov/air/emismod/2016/alpha/spatial_surrogates/shapefiles/mexico_shapefiles.tar.gz, and the configuration files (such as surrogate_generation and surrogate_specification, etc.) I used are modified from an older SA version which uses different shapefiles. The generated emission distribution looks very weird (figure below). I want to ask where can I find the configuration files for the 2016 surrogate?
CO_onroad_mex

I attached the file of the specification. I will also upload to the 2016 alpha area.

Mexico_surrogate_specifications_2016platform.xlsx (20.7 KB)