From left: Todd David, David Mills, Misty David and Lauren Parajon (all photos by Jim Rossman) In the wake of the Texas Monthly Top 50 list which was released this week, there’s been an abnormal amount of BBQ chatter on Twitter. It was in a Tweet I saw mention of CattleAck BBQ in Dallas. I was intrigued, as I’ve at least heard of most joints in Dallas and this one was under my radar. A jump to their Twitter feed @cattleackbbq led me to their website www.cattleackbbq.com. What I found was a BBQ catering business that four weeks ago started opening…