Lockhart Smokehouse pitmaster Damien Avila slices brisket at the Red Dirt BBQ & Music Festival. (Photo by Phil Lamb) Several Posse members headed over to Tyler on Saturday for the first annual Red Dirt BBQ & Music Festival. Fifteen of the best barbecue restaurants in the state were represented, along with great Texas music all afternoon and evening. The event was held on Tyler’s historic downtown square. Click here to see a list of the 15 All-Star BBQ joints that served attendees of the festival. Judging from what we saw, it was a huge success. Though the event was sold out,…