We started by attaching the leading edge skin, we then pilot drilled and clecoed all the interior ribs, After that we started to install the root rib, The original plan was to do both leading edge skins on both wings but it turns out from this point forward it makes for sense to finish out this wing before moving to the left wing. At least for all the drilling and dimpling and what not that is still to be done. We did have to remove the mount brackets in order to install the root rib.