I did wonder if this would happen eventually, great innovation from Hull Trains though to make it happen! The southbound also provides a much earlier connection into Hull for Sheffield, Leeds and Manchester which is great news. It might help to stem the tide of people who drive from the Beverley area to Brough to pick up trains there.
I'm not going to lie though, I'm slightly disappointed that the train won't be calling at Cottingham given there is no connection into Hull (even by bus) for this train. Is there an issue with platform length?