Looks like this is the start of BA CitiExpress pilots entering the BA Mainline senitority list as and when vacancies arise within Mainline. The top 30 on the seniority list within CitiExpress will probably discount most captains as they would take a pay cut. But to be one of the lucky 30 will prob. mean you will have to be a fairly senior FO in CitiExpress with 5+ years seniority.