Sunday is best day to see 4 car sets as all 4 are booked to work in the late afternoon. On Saturday one does Corby's all day one on Sheffield slows all day and the 3rd comes out and does 1C62/1F63.That's my website there - they're up to date as far as I know. I've not taken into account any changes of the May timetable yet, but everything is pretty much the same as far as I am aware.