I think the biggest challenge is availability of pf around the 7am-9am time...too many trains arriving at SBC from KJM side ( including commuter trains used by office goers, daily passengers from BWT, Kolar,few other express trains and couple of trains from Hosur side as well) With all of them converging around the same time, getting pf is a big issue. That being office hours as well, commuter/passenger trains will be given precedence. While the suggestion is good, it remains to be seen if an earlier time of arrival is possible at SBC