I agree with u that vskp has enough of AC trains and this train should run to SHM in weekends but where do they operate during weekdays in the question now. On Friday there is no duronto which is the most sought day for travellers from SC. As we can't change the maintainance of shift the rake to vskp SCR should consider to run a normal express train in present AC express schedule leaving sc on Friday and vskp on Sunday. One more thing in spite of 3 ac trains on Sunday from vskp to sc all get filled up with tatkal too.