The handover of this journal from Brian Thompson re-sembles an in-ﬂight change of pilots. I have to learn and modify the procedures while the ﬂight continues. Brian and I would hope that the passengers would never notice that there has been any change made in the cockpit. It turns out, however, the craft is also being modiﬁed in-ﬂight. In fact, a second craft is being launched and you will get your choice of which one you want to ﬂy on. Then there is the weather forecast...!