We do at Continental but the way I understand it is the thru flight only applies to Continental Employees and Family. It doesn't apply to Buddy Passes unless they are traveling with an employee or someone in their JA. I have been affected by this in HNL when family members of an employee are placed in front of employees traveling to IAH because they started with the flight in GUA. However if they don't make the thru flight they go back to their original pass classification when they are listed on the next flight.