Had a thought about the Red House Farm > Bedlington Station issue if the X21/X22 were to be switched back around.........

1.) After Boghouses, run the 43 straight up the Spine Road to Bedlington Station then after Bedlington, normal route to Morpeth. Don't know how much longer this would take though?

2.) X16 returns to Kirkhill and 2 goes back via Red House Farm using time saved not serving Kirkhill during the day.

Either way in my opinion, the X21/35 cycle won't be robust enough for timings unless the X21/X22 are switched back around betwen Bedlington & Newcastle as they were before 2012.