If IM/RM is doing their job best then the Y seats that are going to sell should be held for them by not selling the GLSTK seats in the first place rather than bumping those customers. Even with the breakage on the VDB funny money you're still spending more than you should be generally with little RoI. Finding that balance is the goal and if the company is not bumping but also not limiting Y seat sales at the end then they're doing something quite right.