I have visited your blog. My reply to it is Mark/Michael will be 3 hours 10 minutes behind Kisha/Jen and maybe 5 hours behind Margie/Luke. However, that has little significance. All that matters is can they make the same flight combination to Guilin. I don't think so. The impact of that is that they could arrive 5 hours later than the other teams, but for unknown reasons (probably availability) they arrive 9 hours later. They could not make up either one unless there is an hours of operation for overnight, which is not possible with the pits stop reports of being open after midnight.