Whilst my inclination is to agree with Expressflight's assessment, I suppose that if OLT Express were determined to make a go of DRS-SEN, they could adopt on a daily basis the schedule they have already used for their Saturday service, i.e SEN arrival 0720, depart 0750. This would not be in direct conflict with the City Jet afternoon service, in fact the two operations could be complementary. Of course this begs the question of whether there would be sufficient traffic potential to support two operators.