CuriousJa - Before someone yells "DO A SEARCH", or "READ THE E-BOOK", I'll give you a thumbnail sketch.
Wash, clay while washing.
Use DACP/SMR/something as required to remove marring.
Use GEPC/VM/AIO/something as a prep/base for the Souveran.
Apply Souveran.
I always put my C5 up on jackstands when I washed/detailed it. It was easier to do the lower areas that way. Don't forget to raise/lower the lights to do the headlight buckets.