Time to do further changes and make it SF.. It already has pretty good TT between KCG-RU or even till PER with 59-60 Km/Hr avg..Now the slack between PER-MS has been cut many times this is held up at Chennai Beach station till MS-DR SF leaves egmore now also it may do it for MS-CSMT SF Mail when it starts for lesser time but actual gain is slack cut between PER-MS, since they may not accept early arrival dep from KCG has been delayed..