Not as much achieved today as I had hoped, Managed to adjust the centre cross-member flanges & that fits well now. Drilled, deburred & primed the mounting holes for the FLARM antenna cable then installed it. Installed the plumbing for the static ports, I'll wait as long as I can to hear from the factory as to the best position for the ports but at this stage just ahead of rib 5 seems to be the favoured position. I also started filling rivets in the luggage compartment.