Just running Dawn of the Shed (13/10, post update) when you get to Sittingbourne you're asked to change ends including setting the tail lights. The instructions tell you to go to the wrong ends of both 66s to set the lights, resulting in the lights being ON in the middle of the train at one end, and you're turning off lights which are already off at the other On leaving Sittingbourne heading back to FAV you cross over tracks and then accellerate. I was in notch 8 and for no reason the train slipped and the speed ended up north of 200mph. Settled back down after less than a second but still...
