Mike,
Core0 is generally the main core due to the definition of how boot modes operate. This is the way that we support most products.
You are free to take the example and try different methods with it, and the E2E Keystone community will benefit from your reports on your progress back here on the forum. Please keep us informed of any progress you make in this direction.
TI support is provided in the examples, which use Core0 as the main core.
Regards,
RandyP