My upper is complete except for the leading edge ply. Should I leave off the ply until the wing is rigged in its final place on the plane, to help 'cement' it into the final rigged position? Or fit the ply beforehand? I understand that fitting later will allow me a little tweaking of the wing during rigging if needed, but on the flip side, fitting the ply while the wing is flat on the bench will ensure that it will facilitate in settingthe wing in a flat state, which is really what it should be...thoughts?