Looking at the ECML timetable this weekend, a number of services from Saturday afternoon onwards are booked to take 3 hours+ between London KX and Doncaster. When you get into the detail of this, some are actually services from St. Pancras, with a change at Sheffield. Others however are simply shown as taking an age between Peterborough and Doncaster, including some regular class 91 turns, such as Leeds and Newcastle trains. My question is does anyone know if there will be any diverts and dragging as far north as Doncaster this weekend, and if so, what locos will be used??? I assume East Coast will try and utilise as many HST sets as possible to mitigate the need for drags, but have they got enough to cover all of the regular services, that are running to a modified timetable north of Peterborough? Regards, Tim.