Not just pantry cars but also time taken to procure 4 rakes including spare coaches is more and some rakes needs to kept idle for months till all the coaches arrive. It happened with trains like purushottam and Bangalore rajdhani express. The pity thing is they started using it for new weekly express trains though they are scheduled slow defeating the purpose of LHB. As production capacities is being ramped they started giving to 2 rake trains and hope 4 rake long distance daily trains also get LHB in future.