Snow's BBQ on a foggy Saturday morning in Nov. 2009, this was the Posse's first of many trips to the BBQ mecca. Editors note: We thought it would be fun to republish the story from our first BBQ pilgrimage to Central Texas in November 2009. What began as a simple roadtrip for six friends became a life-changing experience for us all, giving birth to the Texas BBQ Posse. Once we tasted that Snow's brisket for the first time, nothing related to BBQ would ever be the same. Here's our story... By Gary Jacobson In thick fog on a Saturday morning, we…