When train dont hav stoppage in between LKO-BSB, its via SLN...without stoppage, train will be run via shortest & fastest route!!
Number of stop (if its not horribly low averaged for Per KM) doesnt make a train's run fast but slot!! Further, its slot do have lots of SCH OT (many unscheduled OT happen after MB, which shld happen b4 MB, while other late entering train @ MB from UMB Side will OT after MB again!!)!!