The four meat plate with a link of boudin brought a smile to Posse faces at Ray's Real Pit BBQ Shack in Houston. (Photo ©Chris Wilkins/Texas BBQ Posse) In a previous post, careful readers might wonder about the heading over the itinerary of our weekend trip: "Houston Redemption BBQ Tour" What's that all about? Flash back to the Posse's first Gulf Coast tour two years ago. It was disappointing. The only good barbecue we found was in Galveston, 50 miles away. "Houston, we have a barbecue problem" was the headline on that chapter of our BBQ Chronicles. Some of our…