Border traffic follows a different pattern mainly affected by politics , we used to cross the bridge before 6:30 prior to 11-9 , after we actually were able to get there before 7 because we crossed so regularly the newly added Marine Corp pre inspection knew us by name and waved us through to the clearance building , then our pre clearance again got faster as a regular so our crossing times went down while infrequent crossers were getting the monty so to speak .
PS Thanks for all your suggestions on how to solve the op's issue , you once again are providing such a helpful influence in the discussion .