Creating 36US1 spatial surrogates for 2017 emissions platform

What is the best way to create spatial surrogates for the parts of Mexico and Canada that are part of the 36US1 domain for the 2017 emissions platform. Can the surrogates from the 2016 platform be used ?

You can use the surrogates from the 2016v2 platform as they cover the full 36US3 domain that has been used for modeling.

The 2016v1 surrogates don’t go out as far.